OFFSET
1,2
COMMENTS
Column 1 of A185609
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n)=10*a(n-1)-6*a(n-2)-197*a(n-3)+652*a(n-4)+68*a(n-5)-4460*a(n-6)+9172*a(n-7)-2564*a(n-8)-12176*a(n-9)+34398*a(n-10)-101637*a(n-11)+116495*a(n-12)+54653*a(n-13)-228940*a(n-14)+430952*a(n-15)-746674*a(n-16)+637912*a(n-17)+95538*a(n-18)-1125709*a(n-19)+2119961*a(n-20)-2867650*a(n-21)+2135142*a(n-22)+628180*a(n-23)-2741051*a(n-24)+3448532*a(n-25)-2105927*a(n-26)+61752*a(n-27)+756653*a(n-28)-607098*a(n-29)-875751*a(n-30)+882731*a(n-31)-276007*a(n-32)-379574*a(n-33)+211346*a(n-34)+16316*a(n-35)-52955*a(n-36)+8160*a(n-37)+2952*a(n-38)+864*a(n-39) for n>40
EXAMPLE
Some solutions for 3X2
..3..3....2..0....3..2....2..0....3..1....3..1....2..0....0..1....1..1....3..2
..0..0....2..0....3..2....0..0....3..2....0..0....0..0....0..2....0..0....3..1
..2..0....2..0....3..2....3..2....0..1....3..0....3..1....0..1....0..0....3..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 31 2011
STATUS
approved