A181665 - cp's OEIS frontend

A181665 G.f. satisfies: A(x) = Sum_{n>=0} x^n[Sum_{k=0..n} C(n,k)^2 x^k* A(x)^k].

n	a(n)
0	1
1	1
2	2
3	6
4	17
5	51
6	161
7	519
8	1707
9	5711
10	19358
11	66342
12	229505
13	800333
14	2810370
15	9928806
16	35266403
17	125863071
18	451119566
19	1623142622
20	5860507205
21	21227095355
22	77108788287
23	280847802645
24	1025416658863
25	3752414144071
26	13760368353098

[1, 1, 2, 6, 17, 51, 161, 519, 1707, 5711, 19358, 66342, 229505, 800333, 2810370, 9928806, 35266403, 125863071, 451119566, 1623142622, 5860507205, 21227095355, 77108788287, 280847802645, 1025416658863, 3752414144071, 13760368353098]

cp's OEIS Frontend

A181665 G.f. satisfies: A(x) = Sum_{n>=0} x^n[Sum_{k=0..n} C(n,k)^2 x^k* A(x)^k].

Table of values

List of values

cp's OEIS Frontend

A181665 G.f. satisfies: A(x) = Sum_{n>=0} x^n*[Sum_{k=0..n} C(n,k)^2 *x^k* A(x)^k].

Table of values

List of values

A181665 G.f. satisfies: A(x) = Sum_{n>=0} x^n[Sum_{k=0..n} C(n,k)^2 x^k* A(x)^k].