A085281 - cp's OEIS frontend

A085281 Expansion of (1 - 3x + x^2)/((1-2x)(1-3x)).

n	a(n)
0	1
1	2
2	5
3	13
4	35
5	97
6	275
7	793
8	2315
9	6817
10	20195
11	60073
12	179195
13	535537
14	1602515
15	4799353
16	14381675
17	43112257
18	129271235
19	387682633
20	1162785755
21	3487832977
22	10462450355
23	31385253913
24	94151567435
25	282446313697
26	847322163875
27	2541932937193
28	7625731702715
29	22877060890417
30	68630914235795
31	205892205836473

[1, 2, 5, 13, 35, 97, 275, 793, 2315, 6817, 20195, 60073, 179195, 535537, 1602515, 4799353, 14381675, 43112257, 129271235, 387682633, 1162785755, 3487832977, 10462450355, 31385253913, 94151567435, 282446313697, 847322163875, 2541932937193, 7625731702715, 22877060890417, 68630914235795, 205892205836473]

cp's OEIS Frontend

A085281 Expansion of (1 - 3x + x^2)/((1-2x)(1-3x)).

Table of values

List of values

cp's OEIS Frontend

A085281 Expansion of (1 - 3*x + x^2)/((1-2*x)*(1-3*x)).

Table of values

List of values

A085281 Expansion of (1 - 3x + x^2)/((1-2x)(1-3x)).