a(1) = 1; a(n) = 2 + n * Sum_{k=1..n-1} a(k).
A383436
a(1) = 1; a(n) = 2 + n * Sum_{k=1..n-1} a(k).
Terms
- a(0) =1a(1) =4a(2) =17a(3) =90a(4) =562a(5) =4046a(6) =33042a(7) =302098a(8) =3058742a(9) =33986022a(10) =411230866a(11) =5383385882a(12) =75816017838
External references
- oeis: A383436