A246884 - cp's OEIS frontend

A246884 Expansion of Sum_{n>=0} x^n * Sum_{k=0..n} C(n,k)^2 * x^(4*k).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	5
7	10
8	17
9	26
10	38
11	59
12	101
13	182
14	326
15	564
16	945
17	1566
18	2622
19	4476
20	7750
21	13455
22	23231
23	39837
24	68101
25	116611
26	200526
27	346137
28	598438
29	1034227
30	1785400
31	3080418
32	5317009
33	9187567
34	15893830
35	27515434
36	47647774
37	82513447
38	142902640
39	247553410
40	429020710
41	743846284

[1, 1, 1, 1, 1, 2, 5, 10, 17, 26, 38, 59, 101, 182, 326, 564, 945, 1566, 2622, 4476, 7750, 13455, 23231, 39837, 68101, 116611, 200526, 346137, 598438, 1034227, 1785400, 3080418, 5317009, 9187567, 15893830, 27515434, 47647774, 82513447, 142902640, 247553410, 429020710, 743846284]

cp's OEIS Frontend

A246884 Expansion of Sum_{n>=0} x^n * Sum_{k=0..n} C(n,k)^2 * x^(4*k).

Table of values

List of values