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A081409
a(n) = binomial(n!, lcm(1,...,n)).
0
1, 1, 1, 2704156, 96614908840363322603893139521372656, 26390396795222677975727207509769281627761276862587589456302534175336254818515595864127888
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OFFSET
0,4
LINKS
Table of n, a(n) for n=0..5.
FORMULA
a(n) = binomial(
A000142
(n),
A003418
(n)).
PROG
(PARI) a(n) = binomial(n!, lcm(vector(n, k, k))); \\
Michel Marcus
, Mar 15 2018
CROSSREFS
Cf.
A000142
,
A003418
.
Sequence in context:
A178291
A212231
A317286
*
A251997
A104848
A234370
Adjacent sequences:
A081406
A081407
A081408
*
A081410
A081411
A081412
KEYWORD
nonn
AUTHOR
Labos Elemer
, Apr 01 2003
STATUS
approved
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Last modified September 14 06:54 EDT 2024. Contains 375920 sequences. (Running on oeis4.)