A048503 - cp's OEIS frontend

A048503 G.f.: (1 - 4x + 6x^2 - 2x^3)/((1-x)^3(1-2*x)^2).

n	a(n)
0	1
1	3
2	8
3	22
4	61
5	165
6	430
7	1080
8	2627
9	6223
10	14428
11	32874
12	73849
13	163977
14	360602
15	786604
16	1704127
17	3670227
18	7864552
19	16777470
20	35651861
21	75497773
22	159383878
23	335544672
24	704643451
25	1476395415
26	3087008180
27	6442451410

[1, 3, 8, 22, 61, 165, 430, 1080, 2627, 6223, 14428, 32874, 73849, 163977, 360602, 786604, 1704127, 3670227, 7864552, 16777470, 35651861, 75497773, 159383878, 335544672, 704643451, 1476395415, 3087008180, 6442451410]

cp's OEIS Frontend

A048503 G.f.: (1 - 4x + 6x^2 - 2x^3)/((1-x)^3(1-2*x)^2).

Table of values

List of values

cp's OEIS Frontend

A048503 G.f.: (1 - 4*x + 6*x^2 - 2*x^3)/((1-x)^3*(1-2*x)^2).

Table of values

List of values

A048503 G.f.: (1 - 4x + 6x^2 - 2x^3)/((1-x)^3(1-2*x)^2).