A168311 Numbers that are not sums of two triangular numbers and are not one greater than a sum of two triangular numbers.

33, 41, 53, 54, 63, 75, 86, 96, 104, 117, 118, 125, 129, 162, 167, 179, 180, 185, 188, 195, 204, 222, 223, 224, 229, 230, 243, 248, 251, 261, 270, 271, 284, 285, 293, 294, 314, 317, 318, 333, 334, 338, 339, 348, 349, 350, 360, 365, 369, 375, 376, 377, 383

Offset

1,1

Comments

Number n belongs to this sequence if both n and n-1 belong to A020757.

Links

Table of n, a(n) for n=1..53.

Crossrefs

A020757

Sequence in context: A043929 A180656 A034070 * A045241 A046041 A140151

Adjacent sequences: A168308 A168309 A168310 * A168312 A168313 A168314

Keyword

nonn

Author

Tanya Khovanova, Nov 22 2009

Status

approved