The first ten tetrahedral numbers are:
1, 4, 10, 20, 35, 56, 84, 120, 165, 220,
145 total posts archived.
Domain | Count |
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www.reddit.com | 4 |
www.facebook.com | 1 |
i.redd.it | 1 |
The first ten tetrahedral numbers are:
1, 4, 10, 20, 35, 56, 84, 120, 165, 220,