A106691 - cp's OEIS frontend

A106691 Expansion of g.f. (1+x-2x^2+x^3+x^4)/((1-x)^2(1+x)^2(1+2x)^2).

n	a(n)
0	1
1	-3
2	8
3	-17
4	36
5	-71
6	140
7	-269
8	516
9	-979
10	1852
11	-3481
12	6516
13	-12127
14	22444
15	-41253
16	75236
17	-135915
18	242716
19	-427185
20	737876
21	-1242743
22	2019468
23	-3106877
24	4349636
25	-4971011
26	2485500
27	9942071
28	-49710284
29	159072881
30	-437450388
31	1113510059
32	-2704238684
33	6362914533
34	-14634703396

[1, -3, 8, -17, 36, -71, 140, -269, 516, -979, 1852, -3481, 6516, -12127, 22444, -41253, 75236, -135915, 242716, -427185, 737876, -1242743, 2019468, -3106877, 4349636, -4971011, 2485500, 9942071, -49710284, 159072881, -437450388, 1113510059, -2704238684, 6362914533, -14634703396]

cp's OEIS Frontend

A106691 Expansion of g.f. (1+x-2x^2+x^3+x^4)/((1-x)^2(1+x)^2(1+2x)^2).

Table of values

List of values

cp's OEIS Frontend

A106691 Expansion of g.f. (1+x-2*x^2+x^3+x^4)/((1-x)^2*(1+x)^2*(1+2*x)^2).

Table of values

List of values

A106691 Expansion of g.f. (1+x-2x^2+x^3+x^4)/((1-x)^2(1+x)^2(1+2x)^2).