A028495 - cp's OEIS frontend

A028495 Expansion of g.f. (1-x^2)/(1-x-2*x^2+x^3).

n	a(n)
0	1
1	1
2	2
3	3
4	6
5	10
6	19
7	33
8	61
9	108
10	197
11	352
12	638
13	1145
14	2069
15	3721
16	6714
17	12087
18	21794
19	39254
20	70755
21	127469
22	229725
23	413908
24	745889
25	1343980
26	2421850
27	4363921
28	7863641
29	14169633
30	25532994
31	46008619
32	82904974
33	149389218
34	269190547
35	485064009
36	874055885

[1, 1, 2, 3, 6, 10, 19, 33, 61, 108, 197, 352, 638, 1145, 2069, 3721, 6714, 12087, 21794, 39254, 70755, 127469, 229725, 413908, 745889, 1343980, 2421850, 4363921, 7863641, 14169633, 25532994, 46008619, 82904974, 149389218, 269190547, 485064009, 874055885]

cp's OEIS Frontend

A028495 Expansion of g.f. (1-x^2)/(1-x-2*x^2+x^3).

Table of values

List of values