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Number of isomorphism classes of pairs of orthogonal diagonal Latin squares of order n.
1

%I #23 Dec 24 2020 06:38:46

%S 1,0,0,1,1,0,7,4545,291670

%N Number of isomorphism classes of pairs of orthogonal diagonal Latin squares of order n.

%H Eduard I. Vatutin, Natalia N. Nikitina, Maxim O. Manzuk, <a href="https://vk.com/wall162891802_1485">First results of an experiment on studying the properties of DLS of order 9 in the volunteer distributed computing projects Gerasim@Home and RakeSearch</a> (in Russian).

%H Eduard I. Vatutin, Natalia N. Nikitina, Maxim O. Manzuk, <a href="https://vk.com/wall162891802_1496">Additional calculated results of an experiment on studying the properties of DLS of order 9 in the volunteer distributed computing projects Gerasim@Home and RakeSearch</a> (in Russian).

%H <a href="https://oeis.org/index/La#Latin">Index entries for sequences related to Latin squares and rectangles</a>.

%Y Cf. A287651, A339926.

%K nonn,more,hard

%O 1,7

%A _Eduard I. Vatutin_, Dec 22 2020