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a(n) is the least integer that can be expressed as the sum of one or more consecutive nonzero n-gonal numbers in exactly n ways.
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%I #14 Apr 30 2021 17:15:08

%S 2180,554503705

%N a(n) is the least integer that can be expressed as the sum of one or more consecutive nonzero n-gonal numbers in exactly n ways.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PolygonalNumber.html">Polygonal Number</a>

%H <a href="/index/Pol#polygonal_numbers">Index to sequences related to polygonal numbers</a>

%Y Cf. A298467, A334007, A334008, A334010, A334011, A334012, A338105.

%K nonn,bref,hard,more

%O 3,1

%A _Ilya Gutkovskiy_, Apr 30 2021