a(n) = 2*n^(2*n)*(1+ sum((1+k^(n+2)/n+k/n)/(n^k*k!), k=1..infinity)) / exp(1/n).
A195267
a(n) = 2*n^(2*n)*(1+ sum((1+k^(n+2)/n+k/n)/(n^k*k!), k=1..infinity)) / exp(1/n).
Terms
- a(0) =14a(1) =89a(2) =3104a(3) =265832a(4) =42711550a(5) =11454711984
External references
- oeis: A195267