1,5
A bachelor diagonal Latin square is one with no orthogonal mate.
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
a(n) = A305568(n) * n!.
a(n) = A274806(n) - A305571(n).
Cf. A266177, A305568, A305571.
Sequence in context: A107511 A288471 A008410 * A289638 A289744 A287933
Adjacent sequences: A305566 A305567 A305568 * A305570 A305571 A305572
nonn,more
Eduard I. Vatutin, Jun 05 2018
approved
