A124217 - cp's OEIS frontend

A124217 Expansion of (1-x-x^2)/(1-2x-x^2+x^4).

n	a(n)
0	1
1	1
2	2
3	5
4	11
5	26
6	61
7	143
8	336
9	789
10	1853
11	4352
12	10221
13	24005
14	56378
15	132409
16	310975
17	730354
18	1715305
19	4028555
20	9461440
21	22221081
22	52188297
23	122569120
24	287865097
25	676078233
26	1587833266
27	3729175645
28	8758319459
29	20569736330

[1, 1, 2, 5, 11, 26, 61, 143, 336, 789, 1853, 4352, 10221, 24005, 56378, 132409, 310975, 730354, 1715305, 4028555, 9461440, 22221081, 52188297, 122569120, 287865097, 676078233, 1587833266, 3729175645, 8758319459, 20569736330]

cp's OEIS Frontend

A124217 Expansion of (1-x-x^2)/(1-2x-x^2+x^4).

Table of values

List of values