OFFSET
4,1
LINKS
V. S. Shevelev, Reduced Latin rectangles and square matrices with equal row and column sums, Diskr. Mat.(J. of the Akademy of Sciences of Russia) 4(1992), 91-110.
CROSSREFS
KEYWORD
nonn,more,uned
AUTHOR
Vladimir Shevelev, Mar 22 2010
STATUS
approved