A218619 - cp's OEIS frontend

A218619 G.f. satisfies: A(x) = exp( Sum_{n>=1} x^nA(x)^n/n Sum_{k=0..2n} A200536(n,k)^2 x^k * A(x)^(2k) ), where A200536(n,k) = [x^k] (1 + 3x + 2*x^2)^n.

n	a(n)
0	1
1	1
2	11
3	72
4	734
5	6994
6	74641
7	803196
8	8989482
9	102192197
10	1184211027
11	13897707080
12	165052834584
13	1978844990494
14	23924151189858
15	291313067897212
16	3569576082827250
17	43981925261314302
18	544590342185545146
19	6772925262506494672
20	84567358373934285042

[1, 1, 11, 72, 734, 6994, 74641, 803196, 8989482, 102192197, 1184211027, 13897707080, 165052834584, 1978844990494, 23924151189858, 291313067897212, 3569576082827250, 43981925261314302, 544590342185545146, 6772925262506494672, 84567358373934285042]

cp's OEIS Frontend

A218619 G.f. satisfies: A(x) = exp( Sum_{n>=1} x^nA(x)^n/n Sum_{k=0..2n} A200536(n,k)^2 x^k * A(x)^(2k) ), where A200536(n,k) = [x^k] (1 + 3x + 2*x^2)^n.

Table of values

List of values

cp's OEIS Frontend

A218619 G.f. satisfies: A(x) = exp( Sum_{n>=1} x^n*A(x)^n/n * Sum_{k=0..2*n} A200536(n,k)^2 * x^k * A(x)^(2*k) ), where A200536(n,k) = [x^k] (1 + 3*x + 2*x^2)^n.

Table of values

List of values

A218619 G.f. satisfies: A(x) = exp( Sum_{n>=1} x^nA(x)^n/n Sum_{k=0..2n} A200536(n,k)^2 x^k * A(x)^(2k) ), where A200536(n,k) = [x^k] (1 + 3x + 2*x^2)^n.