A384604 - cp's OEIS frontend

A384604 Expansion of (1-x^2) / (1-x-4x^2+2x^3).

n	a(n)
0	1
1	1
2	4
3	6
4	20
5	36
6	104
7	208
8	552
9	1176
10	2968
11	6568
12	16088
13	36424
14	87640
15	201160
16	478872
17	1108232
18	2621400
19	6096584
20	14365720
21	33509256
22	78778968
23	184084552
24	432181912
25	1010962184
26	2371520728
27	5551005640
28	13015164184
29	30476145288
30	71434790744
31	167309043528

[1, 1, 4, 6, 20, 36, 104, 208, 552, 1176, 2968, 6568, 16088, 36424, 87640, 201160, 478872, 1108232, 2621400, 6096584, 14365720, 33509256, 78778968, 184084552, 432181912, 1010962184, 2371520728, 5551005640, 13015164184, 30476145288, 71434790744, 167309043528]

cp's OEIS Frontend

A384604 Expansion of (1-x^2) / (1-x-4x^2+2x^3).

Table of values

List of values

cp's OEIS Frontend

A384604 Expansion of (1-x^2) / (1-x-4*x^2+2*x^3).

Table of values

List of values

A384604 Expansion of (1-x^2) / (1-x-4x^2+2x^3).