A binomial recursion: a(n) is the coefficient of x in z(n), where z(1) = x and z(n) = 1 + Sum_{k=1..n-1} (binomial(n,k) + 1)*z(k) for n > 1.
A135074
A binomial recursion: a(n) is the coefficient of x in z(n), where z(1) = x and z(n) = 1 + Sum_{k=1..n-1} (binomial(n,k) + 1)*z(k) for n > 1.
Terms
- a(0) =1a(1) =3a(2) =16a(3) =106a(4) =851a(5) =8044a(6) =87540a(7) =1078177a(8) =14827510a(9) =225228130a(10) =3745187549a(11) =67666969438
External references
- oeis: A135074