A350209 a(n) is the smallest positive integer which can be represented as the sum of distinct centered n-gonal numbers in exactly n ways, or 0 if no such integer exists.

65, 151, 330, 316, 515, 645, 888, 824, 1017, 1348, 1474, 1614, 1655, 2006, 2233, 2255, 2779, 2805, 2882, 2865, 3364, 3653, 3930, 4035, 4325, 4765, 4675, 5016, 4904, 5446, 5913, 5990, 6061, 6954, 6850, 7681, 8313, 7846, 7591, 9035, 8736

Offset: 3

Author

Ilya Gutkovskiy, Dec 19 2021

Keywords

• nonn

Links

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

Crossrefs

Cf. A101321, A350195, A350203, A350204, A350207, A350210.