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%I #5 Mar 30 2012 18:39:22
%S 1,1,5,7,854513,8553103,2577687858367,2929993913841559,
%T 596451111593912163277961,84483613348880041862046775994036021,
%U 12300585434086858541953039857403386151
%N a(n)=numerator(B(2*prime(n))) where prime(n)=n-th prime and B(k) denotes the k-th Bernoulli number.
%C a(1)=1 (instead of -1)
%o (PARI) a(n)=numerator(bernfrac(2*prime(n)))
%K nonn
%O 1,3
%A _Benoit Cloitre_, Feb 11 2004
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