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%I #15 Jan 19 2017 09:24:45
%S 31,43,57,67,23,21,129,61,83,163,99,83,19,155,87,291,279,185,99,199,
%T 381,125,239,365,195,129,93,291,399,85,269,221,51,89,21,591,521,19,
%U 427,79,235,47,223,407,627,31,11,377,289,513,259,731,219,329,543,743,101
%N Least positive odd number m such that numerator of zeta(-m) are divisible by A000928(n).
%H Seiichi Manyama, <a href="/A281246/b281246.txt">Table of n, a(n) for n = 1..150</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/Herbrand%E2%80%93Ribet_theorem">Herbrand-Ribet theorem</a>
%e zeta(-11) = 691/32760 and 691 are divisible by A000928(47). So a(47) = 11.
%Y Cf. A000928, A001067.
%K nonn
%O 1,1
%A _Seiichi Manyama_, Jan 18 2017