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A218975
Number of connected cyclic conjugacy classes of subgroups of the alternating group.
0
1, 1, 0, 1, 1, 1, 2, 1, 3, 3, 4, 2, 8, 2
OFFSET
0,7
COMMENTS
a(n) is also the number of connected even partitions of n in the following sense. Given a partition of n, the vertices are the parts of the partition and two vertices are connected if and only if their gcd is greater than 1. We call a partition connected if the graph is connected.
CROSSREFS
Sequence in context: A375729 A144623 A340284 * A048619 A116087 A328518
KEYWORD
nonn,more
AUTHOR
Liam Naughton, Nov 28 2012
STATUS
approved