A094013 - cp's OEIS frontend

A094013 Expansion of (1-4x)/(1-4x-4*x^2).

n	a(n)
0	1
1	0
2	4
3	16
4	80
5	384
6	1856
7	8960
8	43264
9	208896
10	1008640
11	4870144
12	23515136
13	113541120
14	548225024
15	2647064576
16	12781158400
17	61712891904
18	297976201216
19	1438756372480
20	6946930294784
21	33542746669056
22	161958707855360

[1, 0, 4, 16, 80, 384, 1856, 8960, 43264, 208896, 1008640, 4870144, 23515136, 113541120, 548225024, 2647064576, 12781158400, 61712891904, 297976201216, 1438756372480, 6946930294784, 33542746669056, 161958707855360]

cp's OEIS Frontend

A094013 Expansion of (1-4x)/(1-4x-4*x^2).

Table of values

List of values

cp's OEIS Frontend

A094013 Expansion of (1-4*x)/(1-4*x-4*x^2).

Table of values

List of values

A094013 Expansion of (1-4x)/(1-4x-4*x^2).