

A287651


Number of reduced pairs of orthogonal diagonal Latin squares of order n.


0




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..8.
E. I. Vatutin, Discussion about properties of diagonal Latin squares at forum.boinc.ru (in Russian)
E. I. Vatutin, Discussion about properties of diagonal Latin squares at forum.boinc.ru, continuation (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. 104111 (in Russian)
Index entries for sequences related to Latin squares and rectangles


CROSSREFS

Cf. A266166.
Sequence in context: A009512 A317411 A305570 * A163259 A188668 A055599
Adjacent sequences: A287648 A287649 A287650 * A287652 A287653 A287654


KEYWORD

nonn,more


AUTHOR

Eduard I. Vatutin, May 29 2017


EXTENSIONS

a(8) added by Eduard I. Vatutin, Jan 02 2018


STATUS

approved



