A094388 - cp's OEIS frontend

A094388 Expansion of (1- 2x - x^2)/((1-x)(1-3*x)).

n	a(n)
0	1
1	2
2	4
3	10
4	28
5	82
6	244
7	730
8	2188
9	6562
10	19684
11	59050
12	177148
13	531442
14	1594324
15	4782970
16	14348908
17	43046722
18	129140164
19	387420490
20	1162261468
21	3486784402
22	10460353204
23	31381059610
24	94143178828
25	282429536482
26	847288609444

[1, 2, 4, 10, 28, 82, 244, 730, 2188, 6562, 19684, 59050, 177148, 531442, 1594324, 4782970, 14348908, 43046722, 129140164, 387420490, 1162261468, 3486784402, 10460353204, 31381059610, 94143178828, 282429536482, 847288609444]

cp's OEIS Frontend

A094388 Expansion of (1- 2x - x^2)/((1-x)(1-3*x)).

Table of values

List of values

cp's OEIS Frontend

A094388 Expansion of (1- 2*x - x^2)/((1-x)*(1-3*x)).

Table of values

List of values

A094388 Expansion of (1- 2x - x^2)/((1-x)(1-3*x)).