A272642 - cp's OEIS frontend

A272642 Expansion of (x^4+x^3+x^2-x-1)/(x^4+2x^3+2x^2+x-1).

n	a(n)
0	1
1	2
2	3
3	8
4	18
5	42
6	97
7	225
8	521
9	1207
10	2796
11	6477
12	15004
13	34757
14	80515
15	186514
16	432062
17	1000877
18	2318544
19	5370936
20	12441840
21	28821677
22	66765773
23	154663743
24	358280483
25	829961192
26	1922615417
27	4453762510
28	10317196211
29	23899913257
30	55364446116
31	128252427562
32	297098342519
33	688232003132

[1, 2, 3, 8, 18, 42, 97, 225, 521, 1207, 2796, 6477, 15004, 34757, 80515, 186514, 432062, 1000877, 2318544, 5370936, 12441840, 28821677, 66765773, 154663743, 358280483, 829961192, 1922615417, 4453762510, 10317196211, 23899913257, 55364446116, 128252427562, 297098342519, 688232003132]

cp's OEIS Frontend

A272642 Expansion of (x^4+x^3+x^2-x-1)/(x^4+2x^3+2x^2+x-1).

Table of values

List of values

cp's OEIS Frontend

A272642 Expansion of (x^4+x^3+x^2-x-1)/(x^4+2*x^3+2*x^2+x-1).

Table of values

List of values

A272642 Expansion of (x^4+x^3+x^2-x-1)/(x^4+2x^3+2x^2+x-1).