A108480 - cp's OEIS frontend

A108480 Expansion of (1-x-2x^2)/(1-2x-3x^2-4x^3+4*x^4).

n	a(n)
0	1
1	1
2	3
3	13
4	35
5	117
6	379
7	1197
8	3859
9	12357
10	39563
11	126845
12	406371
13	1302101
14	4172443
15	13369293
16	42838835
17	137266917
18	439837739
19	1409354397
20	4515934339
21	14470215157
22	46366299963
23	148569565165
24	476055153491
25	1525403341701

[1, 1, 3, 13, 35, 117, 379, 1197, 3859, 12357, 39563, 126845, 406371, 1302101, 4172443, 13369293, 42838835, 137266917, 439837739, 1409354397, 4515934339, 14470215157, 46366299963, 148569565165, 476055153491, 1525403341701]

cp's OEIS Frontend

A108480 Expansion of (1-x-2x^2)/(1-2x-3x^2-4x^3+4*x^4).

Table of values

List of values

cp's OEIS Frontend

A108480 Expansion of (1-x-2*x^2)/(1-2*x-3*x^2-4*x^3+4*x^4).

Table of values

List of values

A108480 Expansion of (1-x-2x^2)/(1-2x-3x^2-4x^3+4*x^4).