A118283 Conjectured number of numbers that are not the sum of three generalized n-gonal numbers, or -1 if infinite.

0, -1, 0, 0, 4, -1, 26, 45, 94, -1, 196, -1, 370, -1, 641, 743, 999, -1, 1537, 1429, 2619

Offset: 3

Author

T. D. Noe, Apr 21 2006

Keywords

• sign

Comments

See A118282 for the conjectured largest number that is not the sum of three generalized n-gonal numbers. For n=7, only four numbers are not representable: 10, 16, 76 and 307.

Crossrefs

Cf. A118278-A118285.