n*a(n+1) = (2*n^2+2n-1)*a(n) + (n+1)*a(n-1); a(0)=0, a(1)=1.
A259906
n*a(n+1) = (2*n^2+2n-1)*a(n) + (n+1)*a(n-1); a(0)=0, a(1)=1.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =34a(4) =290a(5) =3015a(6) =37131a(7) =529540a(8) =8590724a(9) =156302605a(10) =3152964305a(11) =69852444006
External references
- oeis: A259906