A235350 - cp's OEIS frontend

A235350 Series reversion of x(1-2x-x^2)/(1-x^2).

n	a(n)
1	1
2	2
3	8
4	42
5	248
6	1570
7	10416
8	71474
9	503088
10	3612226
11	26353720
12	194806458
13	1455874792
14	10982013250
15	83504148192
16	639360351074
17	4925190101600
18	38144591091970
19	296837838901992
20	2319880586624714
21	18200693844341720
22	143294043656426082
23	1131747417739664528

[1, 2, 8, 42, 248, 1570, 10416, 71474, 503088, 3612226, 26353720, 194806458, 1455874792, 10982013250, 83504148192, 639360351074, 4925190101600, 38144591091970, 296837838901992, 2319880586624714, 18200693844341720, 143294043656426082, 1131747417739664528]

cp's OEIS Frontend

A235350 Series reversion of x(1-2x-x^2)/(1-x^2).

Table of values

List of values

cp's OEIS Frontend

A235350 Series reversion of x*(1-2*x-x^2)/(1-x^2).

Table of values

List of values

A235350 Series reversion of x(1-2x-x^2)/(1-x^2).