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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 (list; table; graph; refs; listen; history; text; internal format)
 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 R. H. Hardin, Table of n, a(n) for n = 1..60 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 Adjacent sequences: A183968 A183969 A183970 * A183972 A183973 A183974 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 08 2011 STATUS approved

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Last modified September 21 02:47 EDT 2023. Contains 365486 sequences. (Running on oeis4.)