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%I #6 Mar 30 2012 18:39:10
%S 1,1,453,481832565077,3336994692120829058949545155598207748189,
%T 4183667308477313795108662587270037418426429056133620947343416969739965511482242658521291610836247844507748569589345
%N (2^n-1-N(B(2^(n+1))))/2^n where N(B(k)) denotes the numerator of the k-th Bernoulli number.
%C Appears to always be an integer. Next term is too large to include.
%F a(n) = (2^n-1-A000367(2^n))/2^n
%o (PARI) a(n)=(2^n-1-numerator(bernfrac((2^(n+1)))))/2^n
%Y Cf. A000367.
%K nonn
%O 1,3
%A _Benoit Cloitre_, Oct 19 2002
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