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A137592
Duplicate of
A098694
.
2
1, 2, 48, 34560, 1393459200, 5056584744960000, 2422112183371431936000000, 211155601241022491077587763200000000, 4417964278440225627098723475313498521600000000000
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OFFSET
0,2
COMMENTS
Hankel transform of
A112934
(n+1). [From
Paul Barry
, Dec 04 2009]
LINKS
Table of n, a(n) for n=0..8.
FORMULA
a(n)=Product{k=0..n, (2(k+1)(2k+1))^(n-k)}; a(n)=
A000178
(n)*
A057863
(n)*
A006125
(n+1)=
A121835
(n)*
A006125
(n+1);
G.f.: G(0)/2, where G(k)= 1 + 1/(1 - 1/(1 + 1/(2*k+2)!/x/G(k+1))); (continued fraction). -
Sergei N. Gladkovskii
, Jun 14 2013
CROSSREFS
Sequence in context:
A343694
A295177
A098694
*
A203778
A203305
A191954
Adjacent sequences:
A137589
A137590
A137591
*
A137593
A137594
A137595
KEYWORD
dead
AUTHOR
Paul Barry
, Jan 28 2008
STATUS
approved
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Last modified April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)