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A116655 Number of connected subgroups of the symmetric group S_n. +0
3
0, 1, 1, 2, 12, 30, 639, 1835, 64601, 369518, 12351620, 78569754, 5477440592 (list; graph; listen)
OFFSET

0,4
LINKS

N. J. A. Sloane, Transforms

FORMULA

Logarithmic transform of A005432.

CROSSREFS

Labeled version of A005226.

Sequence in context: A019258 A124903 A075352 this_sequence A085892 A101177 A117625

Adjacent sequences: A116652 A116653 A116654 this_sequence A116656 A116657 A116658

KEYWORD

nonn,hard

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Feb 23 2006

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Last modified March 15 12:29 EDT 2010. Contains 173428 sequences.

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