A099025 - cp's OEIS frontend

A099025 Expansion of 1 / ((1+x) * (1-5*x+x^2)).

n	a(n)
0	1
1	4
2	20
3	95
4	456
5	2184
6	10465
7	50140
8	240236
9	1151039
10	5514960
11	26423760
12	126603841
13	606595444
14	2906373380
15	13925271455
16	66719983896
17	319674648024
18	1531653256225
19	7338591633100
20	35161304909276
21	168467932913279
22	807178359657120
23	3867423865372320

[1, 4, 20, 95, 456, 2184, 10465, 50140, 240236, 1151039, 5514960, 26423760, 126603841, 606595444, 2906373380, 13925271455, 66719983896, 319674648024, 1531653256225, 7338591633100, 35161304909276, 168467932913279, 807178359657120, 3867423865372320]

cp's OEIS Frontend

A099025 Expansion of 1 / ((1+x) * (1-5*x+x^2)).

Table of values

List of values