Partial sums of sequence {1/(i^2+1): i=0..n} (denominators).

A033468

Partial sums of sequence {1/(i^2+1): i=0..n} (denominators).

Terms

    a(0) =1a(1) =2a(2) =10a(3) =5a(4) =85a(5) =2210a(6) =81770a(7) =204425a(8) =204425a(9) =16762850a(10) =1693047850a(11) =51637959425

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