A069053 Denominator(sum(i=1,n,1/i^5))/denominator(sum(i=1,n,1/i^3)).

1, 4, 36, 144, 3600, 10800, 529200, 2116800, 6350400, 6350400, 768398400, 768398400, 129859329600, 129859329600, 129859329600, 519437318400, 150117385017600, 450352155052800, 162577127974060800, 6503085118962432

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Crossrefs

Sequence in context: A051418 A069046 A065886 * A193282 A192217 A186434

Adjacent sequences: A069050 A069051 A069052 * A069054 A069055 A069056

Keyword

easy,nonn

Author

Benoit Cloitre, Apr 03 2002

Status

approved