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A100009
a(1) = 2; for n >= 2, a(n) = f(a(n-1)) where f(n) = n*(n+1)*(n+2)*(n+3)/24.
10
2, 5, 70, 1088430, 58478088289964410654020
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OFFSET
1,1
COMMENTS
The next term has 90 digits.
LINKS
Table of n, a(n) for n=1..5.
CROSSREFS
Sequence in context:
A175169
A066933
A132496
*
A167218
A013045
A290864
Adjacent sequences:
A100006
A100007
A100008
*
A100010
A100011
A100012
KEYWORD
easy
,
nonn
,
less
AUTHOR
Jonathan Vos Post
, Nov 16 2004
STATUS
approved
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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)