a(n) = [x^n] Product_{k=1..n} 1/(1 - (2*k-1)^2 * x).
A348088
a(n) = [x^n] Product_{k=1..n} 1/(1 - (2*k-1)^2 * x).
Terms
- a(0) =1a(1) =1a(2) =91a(3) =24970a(4) =14057043a(5) =13444400190
External references
- oeis: A348088
A348088
a(n) = [x^n] Product_{k=1..n} 1/(1 - (2*k-1)^2 * x).