Definition:Tetrahedral Number/Sequence
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Sequence of Tetrahedral Numbers
The sequence of tetrahedral numbers begins as follows:
- $0, 1, 4, 10, 20, 35, 56, 84, 120, 165, 220, 286, 364, \ldots$
This sequence is A000292 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $10$
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $56$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $10$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $56$