A167617 - cp's OEIS frontend

A167617 G.f.: x^2(3+3x+x^2) / ( (2x+1) (1+x) * (1+x+x^2) * (x^2-x+1) ) .

n	a(n)
0	0
1	0
2	3
3	-6
4	10
5	-21
6	42
7	-84
8	171
9	-342
10	682
11	-1365
12	2730
13	-5460
14	10923
15	-21846
16	43690
17	-87381
18	174762
19	-349524
20	699051
21	-1398102
22	2796202
23	-5592405
24	11184810
25	-22369620
26	44739243
27	-89478486
28	178956970
29	-357913941
30	715827882
31	-1431655764
32	2863311531

[0, 0, 3, -6, 10, -21, 42, -84, 171, -342, 682, -1365, 2730, -5460, 10923, -21846, 43690, -87381, 174762, -349524, 699051, -1398102, 2796202, -5592405, 11184810, -22369620, 44739243, -89478486, 178956970, -357913941, 715827882, -1431655764, 2863311531]

cp's OEIS Frontend

A167617 G.f.: x^2(3+3x+x^2) / ( (2x+1) (1+x) * (1+x+x^2) * (x^2-x+1) ) .

Table of values

List of values

cp's OEIS Frontend

A167617 G.f.: x^2*(3+3*x+x^2) / ( (2*x+1) * (1+x) * (1+x+x^2) * (x^2-x+1) ) .

Table of values

List of values

A167617 G.f.: x^2(3+3x+x^2) / ( (2x+1) (1+x) * (1+x+x^2) * (x^2-x+1) ) .