A003477 - cp's OEIS frontend

A003477 Expansion of 1/((1-2x)(1+x^2)(1-x-2x^3)).

n	a(n)
0	1
1	3
2	6
3	14
4	33
5	71
6	150
7	318
8	665
9	1375
10	2830
11	5798
12	11825
13	24039
14	48742
15	98606
16	199113
17	401455
18	808382
19	1626038
20	3267809
21	6562295
22	13169814
23	26416318
24	52962681
25	106145855
26	212665582
27	425965126
28	853005201
29	1707833095
30	3418756806

[1, 3, 6, 14, 33, 71, 150, 318, 665, 1375, 2830, 5798, 11825, 24039, 48742, 98606, 199113, 401455, 808382, 1626038, 3267809, 6562295, 13169814, 26416318, 52962681, 106145855, 212665582, 425965126, 853005201, 1707833095, 3418756806]

cp's OEIS Frontend

A003477 Expansion of 1/((1-2x)(1+x^2)(1-x-2x^3)).

Table of values

List of values