login
This site is supported by donations to The OEIS Foundation.

 

Logo

The October issue of the Notices of the Amer. Math. Soc. has an article about the OEIS.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A305569 Number of bachelor diagonal Latin squares. 2
0, 0, 0, 0, 480, 92160, 861557760, 300261256888320 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

A bachelor diagonal Latin square is one with no orthogonal mate.

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) = A305568(n) * n!.

a(n) = A274806(n) - A305571(n).

CROSSREFS

Cf. A266177, A305568, A305571.

Sequence in context: A107511 A288471 A008410 * A289638 A289744 A287933

Adjacent sequences:  A305566 A305567 A305568 * A305570 A305571 A305572

KEYWORD

nonn,more

AUTHOR

Eduard I. Vatutin, Jun 05 2018

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 25 20:53 EDT 2018. Contains 315425 sequences. (Running on oeis4.)