A281246 Least positive odd number m such that numerator of zeta(-m) are divisible by A000928(n).

31, 43, 57, 67, 23, 21, 129, 61, 83, 163, 99, 83, 19, 155, 87, 291, 279, 185, 99, 199, 381, 125, 239, 365, 195, 129, 93, 291, 399, 85, 269, 221, 51, 89, 21, 591, 521, 19, 427, 79, 235, 47, 223, 407, 627, 31, 11, 377, 289, 513, 259, 731, 219, 329, 543, 743, 101

Offset

1,1

Links

Seiichi Manyama, Table of n, a(n) for n = 1..150

Wikipedia, Herbrand-Ribet theorem

Example

zeta(-11) = 691/32760 and 691 are divisible by A000928(47). So a(47) = 11.

Crossrefs

Cf. A000928, A001067.

Sequence in context: A101520 A225862 A089713 * A067467 A317851 A304239

Adjacent sequences: A281243 A281244 A281245 * A281247 A281248 A281249

Keyword

nonn

Author

Seiichi Manyama, Jan 18 2017

Status

approved