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Denominators of BernoulliB ranked by frequency of occurrence.
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%I #16 Aug 15 2015 09:55:15

%S 6,30,42,66,510,138,798,2730,870,282,330,354,1806,498,1590

%N Denominators of BernoulliB ranked by frequency of occurrence.

%C a(n+1) mod 9 = 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6 which appears to be A010704(n+1). - _Paul Curtz_, Oct 28 2012

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BernoulliNumber.html">Bernoulli Number</a>

%Y Cf. A002445, A090126, A090801, A100194.

%K nonn,hard

%O 1,1

%A _Eric W. Weisstein_, Dec 21 2005

%E Additional 10 terms from _Eric W. Weisstein_ link, Oct 28 2012