A370214 - cp's OEIS frontend

A370214 Coefficient of x^n in the expansion of ( (1+x) / (1-x^3)^2 )^n.

n	a(n)
0	1
1	1
2	1
3	7
4	33
5	101
6	319
7	1226
8	4705
9	17017
10	61901
11	231837
12	872031
13	3260856
14	12220846
15	46062632
16	174030177
17	657910813
18	2490889801
19	9448650829
20	35890996733
21	136473161741
22	519476028237
23	1979421705602
24	7549358718559
25	28816041869476
26	110075383797016

[1, 1, 1, 7, 33, 101, 319, 1226, 4705, 17017, 61901, 231837, 872031, 3260856, 12220846, 46062632, 174030177, 657910813, 2490889801, 9448650829, 35890996733, 136473161741, 519476028237, 1979421705602, 7549358718559, 28816041869476, 110075383797016]

cp's OEIS Frontend

A370214 Coefficient of x^n in the expansion of ( (1+x) / (1-x^3)^2 )^n.

Table of values

List of values