A307852 Number of equivalence classes of rotational row complete Latin squares of order 2n under Gilbert transformations.

1, 1, 2, 22, 267

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

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