A370248 - cp's OEIS frontend

A370248 Coefficient of x^n in the expansion of ( 1/(1-x) * (1+x^3)^2 )^n.

n	a(n)
0	1
1	1
2	3
3	16
4	67
5	276
6	1200
7	5293
8	23427
9	104425
10	468428
11	2110725
12	9546256
13	43315546
14	197088195
15	898910916
16	4108495491
17	18812770011
18	86285313327
19	396332663094
20	1822878714492
21	8394131895424
22	38696042930251
23	178561943852670
24	824720550229584
25	3812313399877776

[1, 1, 3, 16, 67, 276, 1200, 5293, 23427, 104425, 468428, 2110725, 9546256, 43315546, 197088195, 898910916, 4108495491, 18812770011, 86285313327, 396332663094, 1822878714492, 8394131895424, 38696042930251, 178561943852670, 824720550229584, 3812313399877776]

cp's OEIS Frontend

A370248 Coefficient of x^n in the expansion of ( 1/(1-x) * (1+x^3)^2 )^n.

Table of values

List of values