A099486 - cp's OEIS frontend

A099486 Expansion of x/((1 + x^2)(1 - 4x + x^2)).

n	a(n)
0	0
1	1
2	4
3	14
4	52
5	195
6	728
7	2716
8	10136
9	37829
10	141180
11	526890
12	1966380
13	7338631
14	27388144
15	102213944
16	381467632
17	1423656585
18	5313158708
19	19828978246
20	74002754276
21	276182038859
22	1030725401160
23	3846719565780
24	14356152861960

[0, 1, 4, 14, 52, 195, 728, 2716, 10136, 37829, 141180, 526890, 1966380, 7338631, 27388144, 102213944, 381467632, 1423656585, 5313158708, 19828978246, 74002754276, 276182038859, 1030725401160, 3846719565780, 14356152861960]

cp's OEIS Frontend

A099486 Expansion of x/((1 + x^2)(1 - 4x + x^2)).

Table of values

List of values

cp's OEIS Frontend

A099486 Expansion of x/((1 + x^2)*(1 - 4*x + x^2)).

Table of values

List of values

A099486 Expansion of x/((1 + x^2)(1 - 4x + x^2)).