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A152089
Numbers n such that n! is not the sum of two nonnegative triangular numbers.
3
6, 11, 12, 14, 18, 19, 20, 22, 23, 25, 26, 30, 31, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 67, 69, 70, 71, 73, 74, 75, 76, 77, 78, 82, 83, 84, 87, 88, 89, 90, 91, 92, 93, 94, 97, 98, 100, 101, 103, 104, 105, 106, 107, 108
OFFSET
1,1
COMMENTS
Up to 300 these are also terms: 110, 111, 112, 113, 115, 116, 117, 119, 120, 121, 122, 123, 124, 127, 128, 130, 132, 136, 137, 138, 142, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 163, 166, 167, 168, 169, 170, 172, 174, 175, 176, 177, 179, 180, 181, 182, 183, 185, 186, 187, 188, 191, 193, 194, 195, 196, 197, 198, 200, 201, 202, 203, 204, 205, 206, 207, 210, 211, 213, 214, 215, 216, 218, 223, 225, 226, 227, 228, 229, 230, 231, 232, 236, 237, 238, 239, 240, 241, 243, 245, 246, 247, 249, 250, 251, 253, 255, 256, 257, 258, 260, 261, 262, 263, 265, 266, 267, 269, 270, 271, 272, 273, 274, 276, 278, 279, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 292, 293, 294, 295, 297, 298. - G. Guninski, Oct 12 2010
LINKS
Factor Database, Factors [From G. Guninski, Oct 12 2010]
G. Guninski, Factors
R. K. Guy et al., Emails about A152089
CROSSREFS
Complement of A180590.
Sequence in context: A242825 A358068 A276136 * A212773 A230996 A219553
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Sep 24 2010
EXTENSIONS
69 added by N. J. A. Sloane, Sep 24 2010 using the data from the Factor Database web site.
Further terms from G. Guninski and D. S. McNeil, Sep 24 2010
Terms from 93 on from G. Guninski, Oct 12 2010
STATUS
approved