Denominator of S(n)/Pi^n, where S(n) = Sum((4k+1)^(-n),k,-inf,+inf).

A068205

Denominator of S(n)/Pi^n, where S(n) = Sum((4k+1)^(-n),k,-inf,+inf).

Terms

    a(0) =4a(1) =8a(2) =32a(3) =96a(4) =1536a(5) =960a(6) =184320a(7) =161280a(8) =8257536a(9) =2903040a(10) =14863564800a(11) =638668800a(13) =49816166400

External references