OFFSET
1,1
COMMENTS
Column 7 of A252423
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 94*a(n-3) -2103*a(n-6) +20000*a(n-9) -92106*a(n-12) +209364*a(n-15) -240176*a(n-18) +130272*a(n-21) -25344*a(n-24) for n>33
EXAMPLE
Some solutions for n=4
..3..0..1..0..0..1..3..0..1....0..1..0..0..1..3..0..1..0
..1..1..2..1..1..2..1..1..2....2..1..0..3..1..0..0..1..3
..0..0..1..3..0..1..0..0..1....1..2..1..1..2..1..1..2..1
..0..0..1..0..0..1..0..0..1....0..1..3..0..1..0..0..1..0
..1..1..2..1..1..2..1..1..2....3..1..0..0..1..0..0..1..0
..0..0..1..3..0..1..0..0..1....1..2..1..1..2..1..1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2014
STATUS
approved