A218144 - cp's OEIS frontend

A218144 Number of inequivalent graphs on n nodes where two graphs are equivalent if adjacency is preserved under the action of the alternating group.

n	a(n)
1	1
2	2
3	4
4	12
5	40
6	184
7	1296
8	17072
9	424992
10	20314096
11	1836858752
12	310029536960
13	97286240288512
14	56843800957620672
15	62057188173197829888
16	127071179605916892107264
17	489838590133142165412740096
18	3566828190793813383233169950592
19	49211415580467941255510544567667200

[1, 2, 4, 12, 40, 184, 1296, 17072, 424992, 20314096, 1836858752, 310029536960, 97286240288512, 56843800957620672, 62057188173197829888, 127071179605916892107264, 489838590133142165412740096, 3566828190793813383233169950592, 49211415580467941255510544567667200]

cp's OEIS Frontend

A218144 Number of inequivalent graphs on n nodes where two graphs are equivalent if adjacency is preserved under the action of the alternating group.

Table of values

List of values