A217282 - cp's OEIS frontend

A217282 G.f.: A(x) = exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n,k)^2 * x^k*(1-x)^k ).

n	a(n)
0	1
1	1
2	2
3	3
4	5
5	9
6	16
7	30
8	57
9	110
10	216
11	428
12	857
13	1730
14	3516
15	7191
16	14785
17	30544
18	63370
19	131976
20	275811
21	578219
22	1215680
23	2562652
24	5415163
25	11468455
26	24338744
27	51752029
28	110239033
29	235218046
30	502674172
31	1075823427
32	2305661425
33	4947834665
34	10630848122
35	22867799427

[1, 1, 2, 3, 5, 9, 16, 30, 57, 110, 216, 428, 857, 1730, 3516, 7191, 14785, 30544, 63370, 131976, 275811, 578219, 1215680, 2562652, 5415163, 11468455, 24338744, 51752029, 110239033, 235218046, 502674172, 1075823427, 2305661425, 4947834665, 10630848122, 22867799427]

cp's OEIS Frontend

A217282 G.f.: A(x) = exp( Sum_{n>=1} x^n/n * Sum_{k=0..n} binomial(n,k)^2 * x^k*(1-x)^k ).

Table of values

List of values