A350210 a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero n-gonal pyramidal numbers in exactly n ways, or 0 if no such integer exists.

140, 490, 1055, 1872, 2610, 4255, 5011, 8708, 7497, 10819, 12860, 15636, 18055, 24275, 27373, 28146, 30826, 38178, 41849, 44025, 36165, 47621, 57896, 64648, 60064, 67125, 71975, 81820, 77701, 91584, 91320, 99835, 98916, 108686, 112606, 123180, 120919, 142270

Offset: 3

Author

Ilya Gutkovskiy, Dec 19 2021

Keywords

• nonn

Examples

			For n = 3: 140 = 1 + 20 + 35 + 84 = 56 + 84 = 20 + 120. - _Martin Ehrenstein_, Jan 09 2022
		

Links

• Martin Ehrenstein, Table of n, a(n) for n = 3..1002
• Eric Weisstein's World of Mathematics, Pyramidal Number

Crossrefs

Cf. A080851, A350205, A350206, A350207, A350209, A350397.

Extensions

a(35)-a(40) from Martin Ehrenstein, Jan 09 2022