I ran the 153 triangle past The Nerds and one of them responded with something very interesting. Here's the part you'll mostly cling to.
Notice that right "below" the 1-153 highlighted section… 4, 10, 20…
"I think our key could be a certain number. I remember reading something along the lines of "the key is 5 and 5 your hands are a reminder". Now 55 is in a lot of stuff.
Triangular Numbers
0, 1, 3, 6, 10, 15, 21, 28, 36, 45, [55], 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, …
Square Pyramidal
1, 5, 14, 30, [55], 91, 140, 204, 285, 385, 506, 650,…
Fibonacci
1,1,2,3,5,8,13,21,34,[55],89,144, …
Heptagonal Numbers [(5n^2-3n)/2]
1, 7, 18, 34, [55], 81, 112, 148, 189, …
Trianglar numbers are cool. The sum of any 2 consecutive ones is a square. Square pyramidals are also cool. The sum of squares up to n is a square pyramidal. Then fibonacci is the sum of previous terms. Heptagonal can be broken into the three thing in pic related. Also heptagonal numbers have to do with 7 sides, which is a holy number. "
~PathgawdAnon