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A069045 Denominator(sum(i=1,n,1/i^4))/denominator(sum(i=1,n,1/i)). 0
1, 8, 216, 1728, 216000, 648000, 222264000, 1778112000, 16003008000, 16003008000, 21300003648000, 21300003648000, 46796108014656000, 46796108014656000, 46796108014656000, 374368864117248000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..16.
CROSSREFS
Cf. A007480, A002805.
Sequence in context: A007409 A334582 A195506 * A288323 A264056 A271400
Adjacent sequences: A069042 A069043 A069044 * A069046 A069047 A069048
KEYWORD
easy,nonn,changed
AUTHOR
Benoit Cloitre, Apr 03 2002
STATUS
approved

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Last modified May 14 20:17 EDT 2024. Contains 372533 sequences. (Running on oeis4.)