A380807 Numbers not of form a*(b+1) + b*(c+1) + c*(a+1) for 0<a<b<c.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 22, 23, 24, 26, 28, 30, 31, 34, 36, 38, 40, 43, 44, 46, 48, 50, 54, 55, 58, 64, 66, 68, 76, 78, 79, 80, 90, 94, 100, 106, 108, 118, 120, 124, 134, 138, 148, 156, 160, 170, 178, 198, 220, 271, 274, 288, 358, 376, 498, 750, 828

Offset

1,2

Links

Table of n, a(n) for n=1..70.

Crossrefs

Cf. A000926, A380806.

Sequence in context: A023810 A102800 A072676 * A235986 A080197 A341749

Adjacent sequences: A380804 A380805 A380806 * A380808 A380809 A380810

Keyword

nonn

Author

Seiichi Manyama, Feb 04 2025

Status

approved