OFFSET
1,1
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = 18584*n^2 - 102168*n + 126288 for n > 7.
EXAMPLE
Some solutions for 5 X 5:
0 0 0 0 6 1 0 0 0 0 0 4 0 0 0 0 0 0 0 0
0 0 5 2 0 0 0 2 0 6 0 0 0 0 6 0 0 0 3 6
0 3 0 0 0 3 0 0 0 0 3 0 5 0 1 0 4 1 0 0
0 0 0 4 1 0 0 0 5 0 0 0 2 0 0 0 0 0 5 2
0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0
PROG
(PARI) row(6, 30) \\ row(m, n) defined in A186851. - Andrew Howroyd, Jan 02 2023
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 27 2011
EXTENSIONS
Terms a(16) and beyond from Andrew Howroyd, Jan 02 2023
STATUS
approved