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%I #10 Aug 15 2015 20:48:12
%S 0,1,1,6,1,2,6,1,16,18,2,22,6,1,28,30,16,1,18,1,10,42,22,46,48,2,13,
%T 18,28,58,60,1,16,66,1,70,72,1,1,78,80,41,84,1,44,90,46,1,96,1,4,102,
%U 13,53,108,22,112,6,58,1,60,1,1,126,16,130,66,1,8,138,140,1,144,1,148
%N a(n) is the decimal period of the fractional part of BernoulliB(2n).
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BernoulliNumber.html">Bernoulli Number</a>
%Y Cf. A112829.
%K nonn,base
%O 0,4
%A _Eric W. Weisstein_, Sep 21 2005