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A186218 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant 8
0, 175, 175, 609, 1969, 609, 3593, 18873, 18873, 3593, 15055, 197619, 308593, 197619, 15055, 76263, 2008031, 6275745, 6275745, 2008031, 76263, 353985, 20738153, 116461359, 255375977, 116461359, 20738153, 353985, 1729733, 213108423 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Table starts
........0.........175..........609...........3593..........15055..........76263
......175........1969........18873.........197619........2008031.......20738153
......609.......18873.......308593........6275745......116461359.....2259545215
.....3593......197619......6275745......255375977.....9406230423...363322785761
....15055.....2008031....116461359.....9406230423...660028898887.49524283508081
....76263....20738153...2259545215...363322785761.49524283508081
...353985...213108423..43035959317.13767728347159
..1729733..2194753479.826432933951
..8225815.22587046821
.39664199
LINKS
EXAMPLE
Some solutions for 4X3
..1..0..0....0..0..1....2..2..2....2..0..2....2..2..2....1..2..0....1..2..1
..1..0..1....2..0..2....2..1..0....0..0..1....1..1..1....0..0..0....0..0..0
..2..0..1....1..0..0....0..0..0....0..0..2....1..1..1....2..2..2....0..1..2
..0..0..1....0..0..0....2..0..1....1..0..0....2..1..0....0..0..0....0..1..2
CROSSREFS
Sequence in context: A213866 A252717 A187425 * A245035 A102538 A045145
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 15 2011
STATUS
approved

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Last modified June 18 02:31 EDT 2024. Contains 373468 sequences. (Running on oeis4.)