A270298 Numbers which are representable as a sum of eight but no fewer consecutive nonnegative integers.
44, 52, 68, 76, 92, 116, 124, 148, 164, 172, 188, 212, 236, 244, 268, 284, 292, 316, 332, 356, 388, 404, 412, 428, 436, 452, 484, 508, 524, 548, 556, 572, 596, 604, 628, 652, 668, 676, 692, 716, 724, 748, 764, 772, 788, 796, 836, 844, 884, 892, 908, 916, 932
Offset: 1
Keywords
Examples
36 = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 = 11 + 12 + 13 (not in sequence); 44 = 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9; 52 = 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10; 68 = 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12.
Links
- Ray Chandler, Table of n, a(n) for n = 1..10000
Formula
A163169(a(n)) = 8. - Ray Chandler, Mar 22 2016
a(n) = 4*A008364(n+1). - Hugo Pfoertner, Feb 04 2021