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A279203 Number of square permutations of 2n things modulo the operations of mirror image, complement, and inverse. 1
1, 1, 6, 81, 2774, 162945 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
Samuele Giraudo, S. Vialette, Unshuffling Permutations, arXiv preprint arXiv:1601.05962 [cs.DS], 2016.
CROSSREFS
Sequence in context: A204264 A076282 A121790 * A320993 A032491 A135624
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Dec 15 2016
STATUS
approved

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Last modified July 15 01:36 EDT 2024. Contains 374323 sequences. (Running on oeis4.)