A055099 - cp's OEIS frontend

A055099 Expansion of g.f.: (1 + x)/(1 - 3x - 2x^2).

n	a(n)
0	1
1	4
2	14
3	50
4	178
5	634
6	2258
7	8042
8	28642
9	102010
10	363314
11	1293962
12	4608514
13	16413466
14	58457426
15	208199210
16	741512482
17	2640935866
18	9405832562
19	33499369418
20	119309773378
21	424928058970
22	1513403723666
23	5390067288938
24	19197009314146
25	68371162520314
26	243507506189234

[1, 4, 14, 50, 178, 634, 2258, 8042, 28642, 102010, 363314, 1293962, 4608514, 16413466, 58457426, 208199210, 741512482, 2640935866, 9405832562, 33499369418, 119309773378, 424928058970, 1513403723666, 5390067288938, 19197009314146, 68371162520314, 243507506189234]

cp's OEIS Frontend

A055099 Expansion of g.f.: (1 + x)/(1 - 3x - 2x^2).

Table of values

List of values

cp's OEIS Frontend

A055099 Expansion of g.f.: (1 + x)/(1 - 3*x - 2*x^2).

Table of values

List of values

A055099 Expansion of g.f.: (1 + x)/(1 - 3x - 2x^2).