A248161 - cp's OEIS frontend

A248161 Expansion of (2-x+x^2)/((1+x)(1-3x+x^2)).

n	a(n)
0	2
1	3
2	11
3	26
4	71
5	183
6	482
7	1259
8	3299
9	8634
10	22607
11	59183
12	154946
13	405651
14	1062011
15	2780378
16	7279127
17	19056999
18	49891874
19	130618619
20	341963987
21	895273338
22	2343856031
23	6136294751
24	16065028226
25	42058789923
26	110111341547

[2, 3, 11, 26, 71, 183, 482, 1259, 3299, 8634, 22607, 59183, 154946, 405651, 1062011, 2780378, 7279127, 19056999, 49891874, 130618619, 341963987, 895273338, 2343856031, 6136294751, 16065028226, 42058789923, 110111341547]

cp's OEIS Frontend

A248161 Expansion of (2-x+x^2)/((1+x)(1-3x+x^2)).

Table of values

List of values

cp's OEIS Frontend

A248161 Expansion of (2-x+x^2)/((1+x)*(1-3*x+x^2)).

Table of values

List of values

A248161 Expansion of (2-x+x^2)/((1+x)(1-3x+x^2)).