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A032177 Number of connected functions of n points with no fixed points and with no symmetries. +0
2
0, 0, 1, 2, 6, 12, 30, 66, 156, 357, 842, 1961, 4643, 10960, 26072, 62084, 148499, 355784, 855038, 2058536, 4967099, 12005308, 29067646, 70483478, 171158311, 416168250, 1013156687, 2469301316, 6024696764 (list; graph; listen)
OFFSET

1,4
FORMULA

Difference between A015183 and A004111.

CROSSREFS

Cf. A002862.

Adjacent sequences: A032174 A032175 A032176 this_sequence A032178 A032179 A032180

Sequence in context: A058215 A100071 A129912 this_sequence A095349 A022916 A073949

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

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