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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A305571 Number of diagonal Latin squares of order n with at least one orthogonal mate. 2
1, 0, 0, 48, 480, 0, 1290240, 25484820480 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

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, S. E. Kochemazov, O. S. Zaikin, I. I. Citerra, Estimation of the probability of finding orthogonal diagonal Latin squares among general diagonal Latin squares, Recognition - 2018. Kursk: SWSU, 2018. pp. 72-74. (in Russian)

Index entries for sequences related to Latin squares and rectangles

FORMULA

a(n) = A305570(n) * n!.

a(n) = A274806(n) - A305569(n).

CROSSREFS

Cf. A305569, A305570.

Sequence in context: A223419 A287762 A309599 * A229505 A299785 A299787

Adjacent sequences:  A305568 A305569 A305570 * A305572 A305573 A305574

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 23 14:54 EDT 2019. Contains 328345 sequences. (Running on oeis4.)