A102858 Sum of 1, 2, or 4 distinct tetrahedral numbers.

0, 1, 4, 5, 10, 11, 14, 15, 20, 21, 24, 25, 30, 31, 34, 35, 36, 39, 40, 45, 46, 49, 50, 55, 56, 57, 59, 60, 61, 65, 66, 67, 69, 70, 71, 76, 77, 80, 81, 84, 85, 86, 87, 88, 89, 90, 91, 92, 94, 95, 96, 98, 99, 101, 102, 104, 105, 108, 109, 111, 112, 114, 115, 118

Offset: 1

Author

Jud McCranie, Mar 01 2005

Keywords

• nonn

Crossrefs

Cf. A104246, A102795-A102806, A102855, A102857.

Cf. A102856 (subsequence).

Extensions

a(1)=0 prepended. - R. J. Mathar, Jun 05 2025