A343777 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.

2180, 554503705

Offset: 3

Author

Ilya Gutkovskiy, Apr 30 2021

Keywords

• nonn
• bref
• hard
• more

Links

• Eric Weisstein's World of Mathematics, Polygonal Number
• Index to sequences related to polygonal numbers

Crossrefs

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