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

1,3

Links

Table of n, a(n) for n=1..64.

Crossrefs

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

Cf. A102856 (subsequence).

Sequence in context: A199134 A369654 A131855 * A102857 A102856 A393197

Adjacent sequences: A102855 A102856 A102857 * A102859 A102860 A102861

Keyword

nonn

Author

Jud McCranie, Mar 01 2005

Extensions

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

Status

approved