A235349 - cp's OEIS frontend

A235349 Series reversion of x(1-x-2x^2)/(1-x).

n	a(n)
0	0
1	1
2	0
3	2
4	2
5	14
6	30
7	146
8	434
9	1862
10	6470
11	26586
12	99946
13	406366
14	1593774
15	6492450
16	26100578
17	106979894
18	436906902
19	1803472874
20	7446478746
21	30945624910
22	128821054846
23	538584390834
24	2256485249682
25	9483898177574

[0, 1, 0, 2, 2, 14, 30, 146, 434, 1862, 6470, 26586, 99946, 406366, 1593774, 6492450, 26100578, 106979894, 436906902, 1803472874, 7446478746, 30945624910, 128821054846, 538584390834, 2256485249682, 9483898177574]

cp's OEIS Frontend

A235349 Series reversion of x(1-x-2x^2)/(1-x).

Table of values

List of values

cp's OEIS Frontend

A235349 Series reversion of x*(1-x-2*x^2)/(1-x).

Table of values

List of values

A235349 Series reversion of x(1-x-2x^2)/(1-x).