A188589 - cp's OEIS frontend

A188589 Expansion of (1-3x+6x^2-3x^3)/((1-x)^2(1-2*x)).

n	a(n)
0	1
1	1
2	5
3	14
4	33
5	72
6	151
7	310
8	629
9	1268
10	2547
11	5106
12	10225
13	20464
14	40943
15	81902
16	163821
17	327660
18	655339
19	1310698
20	2621417
21	5242856
22	10485735
23	20971494
24	41943013
25	83886052
26	167772131
27	335544290
28	671088609
29	1342177248
30	2684354527

[1, 1, 5, 14, 33, 72, 151, 310, 629, 1268, 2547, 5106, 10225, 20464, 40943, 81902, 163821, 327660, 655339, 1310698, 2621417, 5242856, 10485735, 20971494, 41943013, 83886052, 167772131, 335544290, 671088609, 1342177248, 2684354527]

cp's OEIS Frontend

A188589 Expansion of (1-3x+6x^2-3x^3)/((1-x)^2(1-2*x)).

Table of values

List of values

cp's OEIS Frontend

A188589 Expansion of (1-3*x+6*x^2-3*x^3)/((1-x)^2*(1-2*x)).

Table of values

List of values

A188589 Expansion of (1-3x+6x^2-3x^3)/((1-x)^2(1-2*x)).