A033304 - cp's OEIS frontend

A033304 Expansion of (2 + 2x - 3x^2) / (1 - 2*x - x^2 + x^3).

n	a(n)
0	2
1	6
2	11
3	26
4	57
5	129
6	289
7	650
8	1460
9	3281
10	7372
11	16565
12	37221
13	83635
14	187926
15	422266
16	948823
17	2131986
18	4790529
19	10764221
20	24186985
21	54347662
22	122118088
23	274396853
24	616564132
25	1385407029
26	3112981337
27	6994805571
28	15717185450

[2, 6, 11, 26, 57, 129, 289, 650, 1460, 3281, 7372, 16565, 37221, 83635, 187926, 422266, 948823, 2131986, 4790529, 10764221, 24186985, 54347662, 122118088, 274396853, 616564132, 1385407029, 3112981337, 6994805571, 15717185450]

cp's OEIS Frontend

A033304 Expansion of (2 + 2x - 3x^2) / (1 - 2*x - x^2 + x^3).

Table of values

List of values

cp's OEIS Frontend

A033304 Expansion of (2 + 2*x - 3*x^2) / (1 - 2*x - x^2 + x^3).

Table of values

List of values

A033304 Expansion of (2 + 2x - 3x^2) / (1 - 2*x - x^2 + x^3).