2972712960

Appears in sequences

• a(n) = (4*n+8)(!^4)/8(!^4), related to A034177(n+1) ((4*n+4)(!^4) quartic, or 4-factorials).at n=7A051620
• a(n) = Product_{k = 1..n} A066841(k).at n=7A129364
• Irregular triangle T(n,k) read by rows of the reduced coefficients of Pi^(2*k) in the expansion of Sum_{k>=1} (1 / (4*k^2-1)^n).at n=35A382782
• Denominators arising in the expansion of Sum_{k>=1} (1/(4k^2-1)^n) in even powers of Pi.at n=9A382783