Denominator(sum(i=1,n,1/i^5))/denominator(sum(i=1,n,1/i^3)).

A069053

Denominator(sum(i=1,n,1/i^5))/denominator(sum(i=1,n,1/i^3)).

Terms

    a(0) =1a(1) =4a(2) =36a(3) =144a(4) =3600a(5) =10800a(6) =529200a(7) =2116800a(8) =6350400a(9) =6350400a(10) =768398400a(11) =768398400a(12) =129859329600a(13) =129859329600a(14) =129859329600a(15) =519437318400

External references