A121801 - cp's OEIS frontend

A121801 Expansion of 2x^2(3-x)/((1+x)(1-3x+x^2)).

n	a(n)
1	0
2	6
3	10
4	32
5	78
6	210
7	544
8	1430
9	3738
10	9792
11	25630
12	67106
13	175680
14	459942
15	1204138
16	3152480
17	8253294
18	21607410
19	56568928
20	148099382
21	387729210
22	1015088256
23	2657535550
24	6957518402
25	18215019648
26	47687540550
27	124847601994

[0, 6, 10, 32, 78, 210, 544, 1430, 3738, 9792, 25630, 67106, 175680, 459942, 1204138, 3152480, 8253294, 21607410, 56568928, 148099382, 387729210, 1015088256, 2657535550, 6957518402, 18215019648, 47687540550, 124847601994]

cp's OEIS Frontend

A121801 Expansion of 2x^2(3-x)/((1+x)(1-3x+x^2)).

Table of values

List of values

cp's OEIS Frontend

A121801 Expansion of 2*x^2*(3-x)/((1+x)*(1-3*x+x^2)).

Table of values

List of values

A121801 Expansion of 2x^2(3-x)/((1+x)(1-3x+x^2)).