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A287651 Number of reduced pairs of orthogonal diagonal Latin squares of order n. 0
1, 0, 0, 2, 4, 0, 320 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

A pair of orthogonal diagonal Latin squares is reduced if their first rows are in natural order.

LINKS

Table of n, a(n) for n=1..7.

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

E. I. Vatutin, S. E. Kochemazov, O. S. Zaikin, M. O. Manzuk, V. S. Titov, Combinatorial characteristics estimating for pairs of orthogonal diagonal Latin squares, Multicore processors, parallel programming, FPGA, signal processing systems (2017), pp. 104-111 (in Russian)

CROSSREFS

Cf. A266166.

Sequence in context: A012710 A287761 A009512 * A163259 A188668 A055599

Adjacent sequences:  A287648 A287649 A287650 * A287652 A287653 A287654

KEYWORD

nonn,more

AUTHOR

Eduard I. Vatutin, May 29 2017

STATUS

approved

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Last modified August 19 08:57 EDT 2017. Contains 290794 sequences.