A014480 - cp's OEIS frontend

A014480 Expansion of g.f. (1+2x)/(1-2x)^2.

n	a(n)
0	1
1	6
2	20
3	56
4	144
5	352
6	832
7	1920
8	4352
9	9728
10	21504
11	47104
12	102400
13	221184
14	475136
15	1015808
16	2162688
17	4587520
18	9699328
19	20447232
20	42991616
21	90177536
22	188743680
23	394264576
24	822083584
25	1711276032
26	3556769792
27	7381975040
28	15300820992
29	31675383808
30	65498251264

[1, 6, 20, 56, 144, 352, 832, 1920, 4352, 9728, 21504, 47104, 102400, 221184, 475136, 1015808, 2162688, 4587520, 9699328, 20447232, 42991616, 90177536, 188743680, 394264576, 822083584, 1711276032, 3556769792, 7381975040, 15300820992, 31675383808, 65498251264]

cp's OEIS Frontend

A014480 Expansion of g.f. (1+2x)/(1-2x)^2.

Table of values

List of values

cp's OEIS Frontend

A014480 Expansion of g.f. (1+2*x)/(1-2*x)^2.

Table of values

List of values

A014480 Expansion of g.f. (1+2x)/(1-2x)^2.