A092897 - cp's OEIS frontend

A092897 Expansion of (1-x-x^2-3x^3) / ((1+x)^2(1-3*x)).

n	a(n)
0	1
1	0
2	4
3	4
4	24
5	56
6	188
7	540
8	1648
9	4912
10	14772
11	44276
12	132872
13	398568
14	1195756
15	3587212
16	10761696
17	32285024
18	96855140
19	290565348
20	871696120
21	2615088280
22	7845264924
23	23535794684
24	70607384144
25	211822152336
26	635466457108
27	1906399371220
28	5719198113768
29	17157594341192

[1, 0, 4, 4, 24, 56, 188, 540, 1648, 4912, 14772, 44276, 132872, 398568, 1195756, 3587212, 10761696, 32285024, 96855140, 290565348, 871696120, 2615088280, 7845264924, 23535794684, 70607384144, 211822152336, 635466457108, 1906399371220, 5719198113768, 17157594341192]

cp's OEIS Frontend

A092897 Expansion of (1-x-x^2-3x^3) / ((1+x)^2(1-3*x)).

Table of values

List of values

cp's OEIS Frontend

A092897 Expansion of (1-x-x^2-3*x^3) / ((1+x)^2*(1-3*x)).

Table of values

List of values

A092897 Expansion of (1-x-x^2-3x^3) / ((1+x)^2(1-3*x)).