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A183971
T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one
10
81, 459, 459, 2601, 4401, 2601, 15759, 43163, 43163, 15759, 95481, 459821, 746017, 459821, 95481, 586791, 4911675, 14219749, 14219749, 4911675, 586791, 3606201, 53575889, 272110811, 492135291, 272110811, 53575889, 3606201, 22235391
OFFSET
1,1
COMMENTS
Table starts
........81.........459..........2601..........15759..........95481
.......459........4401.........43163.........459821........4911675
......2601.......43163........746017.......14219749......272110811
.....15759......459821......14219749......492135291....17133244697
.....95481.....4911675.....272110811....17133244697..1088246684231
....586791....53575889....5344196941...615149254565.71600778588343
...3606201...584520435..105022040225.22112885527475
..22235391..6415409881.2080498882227
.137100681.70404186587
.845893287
LINKS
EXAMPLE
Some solutions for 3X3
..1..1..2....1..1..1....2..1..1....1..1..1....1..2..0....1..2..1....1..0..0
..2..2..0....0..0..0....1..2..2....0..1..0....0..1..1....1..1..1....2..2..2
..0..2..2....1..1..0....2..0..2....1..1..1....2..0..1....2..1..1....2..0..1
...
...6..5.......2..2.......6..6.......3..3.......4..4.......5..5.......5..4...
...6..6.......2..1.......5..6.......3..3.......3..3.......5..4.......6..5...
CROSSREFS
Sequence in context: A205208 A236664 A253533 * A253526 A183963 A236354
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 08 2011
STATUS
approved