O.g.f. A(x) satisfies: 0 = [x^n] exp( n*(n-1) * x * A(x) ) / A(x), for n > 1, with A'(0) = 2.
A305598
O.g.f. A(x) satisfies: 0 = [x^n] exp( n*(n-1) * x * A(x) ) / A(x), for n > 1, with A'(0) = 2.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =88a(4) =2780a(5) =116664a(6) =6267112a(7) =420608240a(8) =34572479504
External references
- oeis: A305598