A350207 a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero n-gonal numbers in exactly n ways, or 0 if no such integer exists.

25, 65, 144, 305, 456, 622, 731, 1006, 1434, 1499, 1711, 1806, 2446, 2742, 3001, 3051, 3544, 3699, 3962, 4345, 5362, 5039, 5756, 5712, 6251, 6655, 7399, 7698, 7591, 8304, 8673, 9241, 9362, 9299, 10312, 10606, 11121, 10736, 12113, 12737, 12934

Offset

3,1

Links

Table of n, a(n) for n=3..43.

Eric Weisstein's World of Mathematics, Polygonal Number

Crossrefs

Cf. A057145, A097563, A274046, A350196, A350197, A350198, A350199, A350209, A350210.

Sequence in context: A043979 A033682 A020283 * A211462 A350233 A278855

Adjacent sequences: A350204 A350205 A350206 * A350208 A350209 A350210

Keyword

nonn

Author

Ilya Gutkovskiy, Dec 19 2021

Status

approved