a(n) = (2*n-1)*a(n-1) - a(n-2), a(0) = 0, a(1) = 1.
A053984
a(n) = (2*n-1)*a(n-1) - a(n-2), a(0) = 0, a(1) = 1.
Terms
- a(0) =0a(1) =1a(2) =3a(3) =14a(4) =95a(5) =841a(6) =9156a(7) =118187a(8) =1763649a(9) =29863846a(10) =565649425a(11) =11848774079a(12) =271956154392
External references
- oeis: A053984