A329236 a(n) is the least integer that can be expressed as the sum of one or more consecutive centered triangular numbers in exactly n ways.

1, 64, 1789760

Offset: 1

Author

Ilya Gutkovskiy, Apr 13 2020

Keywords

• nonn
• hard
• more

Comments

If it exists, a(4) > 10^18. - Bert Dobbelaere, Apr 17 2020

Links

• Eric Weisstein's World of Mathematics, Centered Triangular Number

Crossrefs

Cf. A005448, A054859, A068314, A298467, A322610, A334007.