A050942 Numbers that are not the sum of 2 or more consecutive nonzero triangular numbers.

1, 2, 3, 5, 6, 7, 8, 11, 12, 13, 14, 15, 17, 18, 21, 22, 23, 24, 26, 27, 28, 29, 30, 32, 33, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 50, 51, 53, 54, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79, 82, 86, 87, 88

Offset: 1

Author

N. J. A. Sloane, Jan 02 2000

Keywords

• nonn

Comments

In other words, numbers that are not the difference of two non-adjacent tetrahedral numbers (A000292). - Ivan Neretin, Dec 20 2017

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A050943.