A330031 Sums of two nonzero tetrahedral numbers (A000292).

2, 5, 8, 11, 14, 20, 21, 24, 30, 36, 39, 40, 45, 55, 57, 60, 66, 70, 76, 85, 88, 91, 94, 104, 112, 119, 121, 124, 130, 140, 155, 166, 168, 169, 175, 176, 185, 200, 204, 221, 224, 230, 240, 249, 255, 276, 285, 287, 290, 296, 304, 306, 321, 330, 340, 342, 365

Offset: 1

Author

Peter Kagey, Mar 07 2020

Keywords

• nonn

Links

• Peter Kagey, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000292, A102798, A104246.

Analogs for other figurate numbers are A000404 (squares), A003325 (cubes), A051533 (triangular numbers), A286636 (centered square numbers), A287960 (centered triangular numbers), A288631 (square pyramidal numbers), A332987 (pentagonal numbers).