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A030243 Number of nonisomorphic relations with a nontrivial symmetry. 0
0, 0, 4, 34, 580, 23702 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..5.

CROSSREFS

Equals A000595-A030242.

Sequence in context: A081972 A158961 A134354 * A222789 A088077 A162079

Adjacent sequences:  A030240 A030241 A030242 * A030244 A030245 A030246

KEYWORD

nonn,more

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified December 20 13:53 EST 2014. Contains 252266 sequences.