A130567 - cp's OEIS frontend

A130567 Expansion of x(2 - 7x + 2x^2)/((1-x)(1-4x)(1-2*x)).

n	a(n)
1	2
2	7
3	23
4	79
5	287
6	1087
7	4223
8	16639
9	66047
10	263167
11	1050623
12	4198399
13	16785407
14	67125247
15	268468223
16	1073807359
17	4295098367
18	17180131327
19	68720001023
20	274878955519
21	1099513724927
22	4398050705407
23	17592194433023
24	70368760954879

[2, 7, 23, 79, 287, 1087, 4223, 16639, 66047, 263167, 1050623, 4198399, 16785407, 67125247, 268468223, 1073807359, 4295098367, 17180131327, 68720001023, 274878955519, 1099513724927, 4398050705407, 17592194433023, 70368760954879]

cp's OEIS Frontend

A130567 Expansion of x(2 - 7x + 2x^2)/((1-x)(1-4x)(1-2*x)).

Table of values

List of values

cp's OEIS Frontend

A130567 Expansion of x*(2 - 7*x + 2*x^2)/((1-x)*(1-4*x)*(1-2*x)).

Table of values

List of values

A130567 Expansion of x(2 - 7x + 2x^2)/((1-x)(1-4x)(1-2*x)).