

A092237


Maximum number of intercalates in a Latin square of order n.


5




OFFSET

1,4


COMMENTS

An intercalate is a 2 X 2 subsquare of a Latin square. a(10) >= 125, a(11) >= 172, a(12) >= 324.


REFERENCES

I. Wanless, Private communication, 2003.


LINKS



FORMULA

If n is a power of 2, a(n) = n^2*(n1)/4; if n is one less than a power of 2, a(n) = n*(n1)*(n3)/4.


CROSSREFS



KEYWORD

hard,nonn,more


AUTHOR



STATUS

approved



