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a(n) = B(n,1)*(n+1)# where B(n,x) are the Bernoulli polynomials and n# are the primorial numbers A034386.
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%I #6 Oct 02 2017 09:10:52

%S 1,1,1,0,-1,0,5,0,-7,0,175,0,-7601,0,35035,0,-3620617,0,533203385,0,

%T -5132341123,0,1381418533495,0,-19315437152429,0,318022715945935,0,

%U -176611180730425441,0,120653354922346558325,0,-3031735699207849905271,0,86163723379372590236285

%N a(n) = B(n,1)*(n+1)# where B(n,x) are the Bernoulli polynomials and n# are the primorial numbers A034386.

%p A292899 := n -> bernoulli(n,1)*A034386(n+1): seq(A292899(n), n=0..34);

%Y Cf. A164555/A027642, A034386, A123536.

%K sign

%O 0,7

%A _Peter Luschny_, Oct 02 2017