Denominator(Sum_{i=1..n} 1/i^3)/denominator(Sum_{i=1..n} 1/i).
A068589
Denominator(Sum_{i=1..n} 1/i^3)/denominator(Sum_{i=1..n} 1/i).
Terms
- a(0) =1a(1) =4a(2) =36a(3) =144a(4) =3600a(5) =1200a(6) =58800a(7) =235200a(8) =6350400a(9) =6350400a(10) =768398400a(11) =768398400a(12) =129859329600a(13) =129859329600a(14) =129859329600a(15) =519437318400
External references
- oeis: A068589