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A207479 T(n,k)=Number of nXk 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row, column or nw-se diagonal 7
4, 16, 16, 58, 256, 58, 214, 3364, 3364, 214, 788, 45796, 133556, 45796, 788, 2902, 620944, 5632964, 5632964, 620944, 2902, 10686, 8421604, 236422326, 768149650, 236422326, 8421604, 10686, 39350, 114190596, 9918542118, 103954441786 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.....4.........16.............58................214....................788

....16........256...........3364..............45796.................620944

....58.......3364.........133556............5632964..............236422326

...214......45796........5632964..........768149650...........103954441786

...788.....620944......236422326.......103954441786.........45141978255552

..2902....8421604.....9918542118.....14048417801822......19555176286561332

.10686..114190596...415949940602...1897778216001770....8467264566580418754

.39350.1548422500.17445552068794.256411488632156454.3667158147033103349794

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for n=4 k=3

..2..1..3....2..2..1....3..1..1....0..1..1....0..2..0....2..0..1....0..3..3

..3..0..1....0..0..3....1..3..3....3..3..0....3..0..0....0..2..0....0..1..3

..3..0..0....0..0..1....3..1..3....3..1..2....2..1..1....1..2..2....2..1..1

..1..3..0....1..1..3....1..3..3....3..2..1....0..2..1....3..0..0....2..1..1

CROSSREFS

Column 1 is A207276

Column 2 is A207277

Sequence in context: A232516 A220109 A207283 * A207535 A269194 A269143

Adjacent sequences:  A207476 A207477 A207478 * A207480 A207481 A207482

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 18 2012

STATUS

approved

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Last modified August 14 18:13 EDT 2022. Contains 356122 sequences. (Running on oeis4.)