A368072 Number of representations of n as the difference of two positive tetrahedral numbers.

0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2

Offset

1,36

Links

Table of n, a(n) for n=1..100.

Eric Weisstein's World of Mathematics, Tetrahedral Number

Example

a(36) = 2: 36 = 56 - 20 = 120 - 84.

Crossrefs

Cf. A000292, A136107, A307666, A368073, A368076.

Sequence in context: A339553 A181011 A084863 * A233441 A255365 A256505

Adjacent sequences: A368069 A368070 A368071 * A368073 A368074 A368075

Keyword

nonn

Author

Ilya Gutkovskiy, Dec 10 2023

Status

approved