A138212 - cp's OEIS frontend

A138212 G.f.: A(x) = 1 + x(1 + x(1 + x(...(1 + x(...)^(2n))...)^6)^4)^2.

n	a(n)
0	1
1	1
2	2
3	9
4	68
5	732
6	10250
7	176654
8	3613044
9	85476720
10	2295275372
11	68949496421
12	2290588299708
13	83374406924240
14	3299390271801838
15	141034101443780374
16	6475752407825487220
17	317866884692663325892
18	16609896989101220207880

[1, 1, 2, 9, 68, 732, 10250, 176654, 3613044, 85476720, 2295275372, 68949496421, 2290588299708, 83374406924240, 3299390271801838, 141034101443780374, 6475752407825487220, 317866884692663325892, 16609896989101220207880]

cp's OEIS Frontend

A138212 G.f.: A(x) = 1 + x(1 + x(1 + x(...(1 + x(...)^(2n))...)^6)^4)^2.

Table of values

List of values

cp's OEIS Frontend

A138212 G.f.: A(x) = 1 + x*(1 + x*(1 + x*(...(1 + x*(...)^(2n))...)^6)^4)^2.

Table of values

List of values

A138212 G.f.: A(x) = 1 + x(1 + x(1 + x(...(1 + x(...)^(2n))...)^6)^4)^2.