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%I #5 Jan 31 2023 08:51:58
%S 1,231,575,721,1618,1750,1877,2240,2736,2995,3105,3080,3500,3311,3920,
%T 4151,4280,4495,4719,4621,4675,5041,5164,5291,5060,5591,5480,5566,
%U 5635,5755,5985,6216,6080,6279,6320,6510,6655,6636,6870,7145,7195,6999,6971,7296,7211
%N a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero octahedral numbers in exactly n ways, or -1 if no such integer exists.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/OctahedralNumber.html">Octahedral Number</a>
%Y Cf. A005900, A275154, A350205, A360215, A360216.
%K nonn
%O 1,2
%A _Ilya Gutkovskiy_, Jan 30 2023
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