A108765 - cp's OEIS frontend

A108765 Expansion of g.f. (1 - x + x^2)/((1-3x)(x-1)^2).

n	a(n)
0	1
1	4
2	14
3	45
4	139
5	422
6	1272
7	3823
8	11477
9	34440
10	103330
11	310001
12	930015
13	2790058
14	8370188
15	25110579
16	75331753
17	225995276
18	677985846
19	2033957557
20	6101872691
21	18305618094
22	54916854304
23	164750562935
24	494251688829
25	1482755066512

[1, 4, 14, 45, 139, 422, 1272, 3823, 11477, 34440, 103330, 310001, 930015, 2790058, 8370188, 25110579, 75331753, 225995276, 677985846, 2033957557, 6101872691, 18305618094, 54916854304, 164750562935, 494251688829, 1482755066512]

cp's OEIS Frontend

A108765 Expansion of g.f. (1 - x + x^2)/((1-3x)(x-1)^2).

Table of values

List of values

cp's OEIS Frontend

A108765 Expansion of g.f. (1 - x + x^2)/((1-3*x)*(x-1)^2).

Table of values

List of values

A108765 Expansion of g.f. (1 - x + x^2)/((1-3x)(x-1)^2).