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A184784 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock nonsingular 5
12792, 260268, 260268, 5299212, 13313404, 5299212, 107810856, 681288932, 681288932, 107810856, 2193592920, 34797264276, 87624157296, 34797264276, 2193592920, 44633574216, 1778231844136, 11238839929536, 11238839929536 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
..........12792...........260268............5299212...........107810856
.........260268.........13313404..........681288932.........34797264276
........5299212........681288932........87624157296......11238839929536
......107810856......34797264276.....11238839929536....3617921434188172
.....2193592920....1778231844136...1442620554904424.1165690391152078172
....44633574216...90873049503556.185182404965507590
...908160565032.4643641622051596
.18478374229416
LINKS
EXAMPLE
Some solutions for 5X4
..0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0....0..0..1..0
..2..0..0..1....1..0..0..1....1..0..0..1....2..0..0..1....2..0..0..1
..1..1..0..2....2..1..0..2....2..1..0..0....1..2..0..1....2..2..0..1
..2..1..1..2....2..1..2..1....0..0..1..1....0..2..1..1....2..1..1..0
..2..0..1..1....2..0..2..2....0..2..1..0....1..0..2..2....1..2..0..2
CROSSREFS
Sequence in context: A187597 A203273 A217184 * A184780 A206796 A206966
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 21 2011
STATUS
approved

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Last modified June 19 09:37 EDT 2024. Contains 373501 sequences. (Running on oeis4.)