A087946 - cp's OEIS frontend

A087946 Expansion of (1-3x+x^2)/((1-2x)(1-4x+x^2)).

n	a(n)
0	1
1	3
2	10
3	35
4	126
5	461
6	1702
7	6315
8	23494
9	87533
10	326382
11	1217483
12	4542526
13	16950573
14	63255670
15	236063915
16	880983606
17	3287837741
18	12270301822
19	45793238475
20	170902389934
21	637815796973
22	2380359749382
23	8883621103403

[1, 3, 10, 35, 126, 461, 1702, 6315, 23494, 87533, 326382, 1217483, 4542526, 16950573, 63255670, 236063915, 880983606, 3287837741, 12270301822, 45793238475, 170902389934, 637815796973, 2380359749382, 8883621103403]

cp's OEIS Frontend

A087946 Expansion of (1-3x+x^2)/((1-2x)(1-4x+x^2)).

Table of values

List of values