Learning about different types of numbers.
https:/ /www.fq.math.ca/Scanned/9-2/bauer.pdf
Numbers that are both Triangular and Square - their Triangular Roots and Square Roots. R. L. BAUER. (3 pg pdf, 1971)
This popped up including 'recursive' in search.
And, patterns in these triangle numbers. An email exchange with a mathematician regarding The Triangular Squares:
The purpose of this note is not Pell’s equation, but rather to give a more elementary solution, once we propose that the triangular squares obey a linear recurrence. The recurrence I gave needs only two consecutive values, say 0 and 1, to produce all the rest.
http:/ /www.gosper.org/triangsq.pdf
That all stemmed from this guy Hans, and researching Pascal's triangle. It's where I stumbled on the Star of David. He has an interesting perspective.
http:/ /hans.wyrdweb.eu/about-the-number-nine/
About Pascal’s Triangle
When a number represents a Geometric Structure it is called a Figurative Number.
Every possible figurative number is generated by the Triangle of Pascal.
The Fractal Sierpinsky Triangle is the Triangle of Pascal Modulo 2.
The Triangle of Pascal was known long before Pascal (re)discovered it.
It was known in Ancient India as the Meru Prastara and in China as the Yang Hui. Meru Prastara relates the triangel to a Mystical Mountain called Mount Meru. Mount Meru is also implemented in the Sri Yantra.
The Triangle shows the Coefficients of the Function F(X,Y))= (X+Y)**n. If n=0 F(X,Y)=1 and if n=1 F(X,Y)=X+Y so the Coeffcients are (1,1).
Pascals Triangle is a 2-Dimensional System based on the Polynomal (X+Y)N. It is always possible to generalize this structure to Higher Dimensional Levels. 3 Variables ((X+Y+X)N) generate The Pascal Pyramid and n variables (X+Y+Z+….)**N generate The Pascal Simplex.
The rows of the Pascal’s Triangle add up to the power of 2 of the row. So the sum of row 0 is 20 and the sum of row 1 is 21 =2.
The Sum of the rows of the higher n-dimensional versions of the Triangle is nN where n is the Amount of Variables and N the level of expansion. So the Sum of Pascal’s Pyramid (3 variables X,Y,Z) is 3N.
The most interesting property of the Triangle is visible in the Diagonals.
The First Diagonal contains only 1′s. The Ones represent Unique Objects. They are the Points in the Tetraktys.
The Second Diagonal contains the natural numbers. These Numbers are used to Count Objects that are The Same. The Natural Numbers are the Lines that connect the Points. The Natural Numbers are the Sum of the previous Ones.
The Third Diagonal contains the triangular numbers. The Triangular Numbers are the Sum of the previous Natural Numbers.
This pattern repeats itself all the time.
The Fourth Diagonal contains the tetrahedral numbers (Pyramid Numbers) and the Fifth Diagonal, the pentatope numbers.
Fermat stated that Every Positive Integer is a Sum of at most three Triangular numbers, four Square numbers, five Pentagonal numbers, and n n-polygonal numbers.
The Tetrahedron with basic length 4 (summing up to 20) can be looked at as the 3-Dimensional analogue of the Tetraktys.
The Diagonals of the Triangle of Pascal contain every Possible 2-Dimensional Figurative Number (and Structure).
These Numbers are Projections of Higher Dimensional Numbers and Higher Dimensional Structures.
The Higher Dimensional Versions of the Triangle (the Pascal Pyramid, The Pascal Simplex) contain these structures.
The Rows of the Triangle Sum to the Powers of Two (2 Dimensions). These Powers control the Levels of Expansion.
Every 7th step the Fractal Pattern of the Triangle repeats itself on a higher Level.
The Figurative Numbers are the Geometric Shapes that are created by the Lines of the Natural Numbers that are connecting the Points of the One.
Pascal’s Triangle also contains the numbers of the Fibonacci Sequence (“The Golden Spiral“).
When we take the Modulo 9 (the Digital Root of Pythagoras) of the Numbers of Fibonacci a repeating patterns of 24 steps shows itself that can be represented by a Star Tetrahedron or Stella Octangula. The Star Tetrahedron is a Three Dimensional Star of David.