A183876 - cp's OEIS frontend

A183876 G.f. satisfies: A(x) = Sum_{n>=0} x^n[Sum_{k=0..n} C(n,k)^2 x^k* A(x)^(2k)].

n	a(n)
0	1
1	1
2	2
3	7
4	24
5	86
6	328
7	1289
8	5180
9	21232
10	88384
11	372582
12	1587442
13	6825092
14	29573380
15	129014039
16	566183860
17	2497841196
18	11071594936
19	49281430216
20	220193658876
21	987234942328
22	4440142628200
23	20027079949202
24	90569211556534

[1, 1, 2, 7, 24, 86, 328, 1289, 5180, 21232, 88384, 372582, 1587442, 6825092, 29573380, 129014039, 566183860, 2497841196, 11071594936, 49281430216, 220193658876, 987234942328, 4440142628200, 20027079949202, 90569211556534]

cp's OEIS Frontend

A183876 G.f. satisfies: A(x) = Sum_{n>=0} x^n[Sum_{k=0..n} C(n,k)^2 x^k* A(x)^(2k)].

Table of values

List of values

cp's OEIS Frontend

A183876 G.f. satisfies: A(x) = Sum_{n>=0} x^n*[Sum_{k=0..n} C(n,k)^2 *x^k* A(x)^(2k)].

Table of values

List of values

A183876 G.f. satisfies: A(x) = Sum_{n>=0} x^n[Sum_{k=0..n} C(n,k)^2 x^k* A(x)^(2k)].