A036723 - cp's OEIS frontend

A036723 G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 2 generated by (1,2)(3,4).

n	a(n)
0	1
1	1
2	2
3	8
4	30
5	135
6	622
7	3032
8	15134
9	77506
10	403780
11	2135588
12	11430910
13	61815916
14	337193808
15	1853183376
16	10251612034
17	57037706410
18	318965425380
19	1791842232154
20	10107161112356
21	57221612791015
22	325045726349906
23	1852055247196164

[1, 1, 2, 8, 30, 135, 622, 3032, 15134, 77506, 403780, 2135588, 11430910, 61815916, 337193808, 1853183376, 10251612034, 57037706410, 318965425380, 1791842232154, 10107161112356, 57221612791015, 325045726349906, 1852055247196164]

cp's OEIS Frontend

A036723 G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 2 generated by (1,2)(3,4).

Table of values

List of values