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A137592 Duplicate of A098694. 2

%I

%S 1,2,48,34560,1393459200,5056584744960000,2422112183371431936000000,

%T 211155601241022491077587763200000000,

%U 4417964278440225627098723475313498521600000000000

%N Duplicate of A098694.

%C Hankel transform of A112934(n+1). [From _Paul Barry_, Dec 04 2009]

%F 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);

%F 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

%K dead

%O 0,2

%A _Paul Barry_, Jan 28 2008

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Last modified April 20 10:12 EDT 2021. Contains 343130 sequences. (Running on oeis4.)