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A270300
Numbers which are representable as a sum of thirteen but no fewer consecutive nonnegative integers.
8
104, 208, 416, 832, 1352, 1664, 1768, 1976, 2392, 2704, 3016, 3224, 3328, 3536, 3848, 3952, 4264, 4472, 4784, 4888, 5408, 5512, 6032, 6136, 6344, 6448, 6656, 6968, 7072, 7384, 7592, 7696, 7904, 8216, 8528, 8632, 8944, 9256, 9568, 9776, 10088, 10504, 10712
OFFSET
1,1
LINKS
FORMULA
A163169(a(n)) = 13. - Ray Chandler, Mar 22 2016
a(n) == 0 (mod 104). - Hugo Pfoertner, Feb 04 2021
EXAMPLE
90 = 1 + 2 + 3 + ... + 11 + 12 + 13 = 29 + 30 + 31 (not in sequence);
104 = 2 + 3 + 4 + ... + 12 + 13 + 14;
208 = 10 + 11 + 12 + ... + 20 + 21 + 22;
416 = 26 + 27 + 28 + ... + 36 + 37 + 38.
KEYWORD
nonn
AUTHOR
Martin Renner, Mar 14 2016
STATUS
approved