A360215 a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero icosahedral numbers in exactly n ways, or -1 if no such integer exists.

1, 1383, 4157, 6548, 8633, 9884, 12503, 12920, 15357, 15812, 18146, 18126, 19755, 20895, 22106, 23229, 23246, 23685, 22118, 25142, 25884, 27894, 29448, 28149, 29703, 30285, 31914, 30966, 34007, 34380, 34390, 35082, 35894, 34389, 36891, 37035, 37425, 35907, 35895, 38856

Offset: 1

Author

Ilya Gutkovskiy, Jan 30 2023

Keywords

• nonn

Links

• Wikipedia, Icosahedral number

Crossrefs

Cf. A006564, A275154, A350205, A360214, A360216.