A077863 - cp's OEIS frontend

A077863 Expansion of (1-x)^(-1)/(1-x-2x^2-2x^3).

n	a(n)
0	1
1	2
2	5
3	12
4	27
5	62
6	141
7	320
8	727
9	1650
10	3745
11	8500
12	19291
13	43782
14	99365
15	225512
16	511807
17	1161562
18	2636201
19	5982940
20	13578467
21	30816750
22	69939565
23	158730000
24	360242631
25	817581762
26	1855527025
27	4211175812
28	9557393387
29	21690799062
30	49227937461
31	111724322360

[1, 2, 5, 12, 27, 62, 141, 320, 727, 1650, 3745, 8500, 19291, 43782, 99365, 225512, 511807, 1161562, 2636201, 5982940, 13578467, 30816750, 69939565, 158730000, 360242631, 817581762, 1855527025, 4211175812, 9557393387, 21690799062, 49227937461, 111724322360]

cp's OEIS Frontend

A077863 Expansion of (1-x)^(-1)/(1-x-2x^2-2x^3).

Table of values

List of values

cp's OEIS Frontend

A077863 Expansion of (1-x)^(-1)/(1-x-2*x^2-2*x^3).

Table of values

List of values

A077863 Expansion of (1-x)^(-1)/(1-x-2x^2-2x^3).