A370618 - cp's OEIS frontend

A370618 Coefficient of x^n in the expansion of ( (1-x) / (1-x-x^2)^2 )^n.

n	a(n)
0	1
1	1
2	7
3	34
4	191
5	1071
6	6154
7	35729
8	209455
9	1236508
10	7341577
11	43792112
12	262230242
13	1575391156
14	9490934411
15	57316715079
16	346875036879
17	2103174805035
18	12773139313516
19	77689736488088
20	473160660856361
21	2885208137132852
22	17612514244078288
23	107621658416373752

[1, 1, 7, 34, 191, 1071, 6154, 35729, 209455, 1236508, 7341577, 43792112, 262230242, 1575391156, 9490934411, 57316715079, 346875036879, 2103174805035, 12773139313516, 77689736488088, 473160660856361, 2885208137132852, 17612514244078288, 107621658416373752]

cp's OEIS Frontend

A370618 Coefficient of x^n in the expansion of ( (1-x) / (1-x-x^2)^2 )^n.

Table of values

List of values