a(n) = P(n, 1/2) where P(n, x) = x^(-n)*Sum_{k=0..n} A241171(n, k)*x^k.
A356900
a(n) = P(n, 1/2) where P(n, x) = x^(-n)*Sum_{k=0..n} A241171(n, k)*x^k.
Terms
- a(0) =1a(1) =1a(2) =8a(3) =154a(4) =5552a(5) =321616a(6) =27325088a(7) =3200979664a(8) =494474723072
External references
- oeis: A356900