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A307852

Number of equivalence classes of rotational row complete Latin squares of order 2n under Gilbert transformations.

1, 1, 2, 22, 267

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Table of n, a(n) for n=1..5.

E. N. Gilbert, Latin squares which contain no repeated digrams, SIAM Rev. 7 1965 189--198. MR0179095 (31 #3346).

K. Haymaker and B. Malmskog, What (quilting) circles can be squared?, preprint 2017, to appear in Mathematics Magazine.

Beth Malmskog, Python Code to Compute Sequence

PROG

(Python) # See Malmskog link.

CROSSREFS

A141598 is the number of rotational row complete Latin squares of order 2n; the current sequence is the number of equivalence classes of items counted in A141598.

Sequence in context: A072076 A226706 A036841 * A365529 A264836 A135634

Adjacent sequences: A307849 A307850 A307851 * A307853 A307854 A307855

KEYWORD

nonn,more

AUTHOR

Beth Malmskog, May 01 2019

STATUS

approved

URL: https://oeis.org/A307852

⇱ A307852 - OEIS