n*a(n+1) = (2*n^2+2n-1)*a(n)+(n+1)*a(n-1); a(0)=1, a(1)=2.
A259905
n*a(n+1) = (2*n^2+2n-1)*a(n)+(n+1)*a(n-1); a(0)=1, a(1)=2.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =47a(4) =371a(5) =3676a(6) =43822a(7) =610493a(8) =9730757a(9) =174624086a(10) =3483890996a(11) =76489299307
External references
- oeis: A259905