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A305570 Number of diagonal Latin squares with constant first row with at least one orthogonal mate. 2
1, 0, 0, 2, 4, 0, 256, 632064 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..8.

E. I. Vatutin, Discussion about properties of diagonal Latin squares at forum.boinc.ru (in Russian)

Index entries for sequences related to Latin squares and rectangles

FORMULA

a(n) = A305571(n) / n!.

a(n) = A274171(n) - A305568(n).

CROSSREFS

Cf. A305568, A305571.

Sequence in context: A287761 A009512 A317411 * A287651 A163259 A188668

Adjacent sequences:  A305567 A305568 A305569 * A305571 A305572 A305573

KEYWORD

nonn,more

AUTHOR

Eduard I. Vatutin, Jun 05 2018

STATUS

approved

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Last modified September 25 21:12 EDT 2018. Contains 315425 sequences. (Running on oeis4.)