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A222649 T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order 7
1, 1, 1, 1, 1, 1, 4, 3, 3, 4, 5, 12, 5, 12, 5, 14, 38, 61, 61, 38, 14, 17, 124, 157, 457, 157, 124, 17, 70, 430, 1972, 3411, 3411, 1972, 430, 70, 89, 1530, 5625, 31487, 25724, 31487, 5625, 1530, 89, 326, 5378, 66494, 317655, 640355, 640355, 317655, 66494, 5378, 326 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

Table starts

....1......1........1...........4..............5..............14

....1......1........3..........12.............38.............124

....1......3........5..........61............157............1972

....4.....12.......61.........457...........3411...........31487

....5.....38......157........3411..........25724..........640355

...14....124.....1972.......31487.........640355........14332759

...17....430.....5625......317655........5969486.......368332772

...70...1530....66494.....3161392......171452513.....10043940772

...89...5378...199913....31436637.....1679184332....284244110551

..326..18938..2287282...315944445....49651101137...8226667384808

..413..67042..7139249..3182997999...492598252164.241133356688912

.1630.238446.79717242.32059374557.14686568899907

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..144

EXAMPLE

Some solutions for n=3 k=4

..0..1..0..0....0..0..0..0....0..0..0..1....0..0..1..1....0..0..0..0

..1..0..0..0....0..0..0..1....0..0..0..0....1..1..1..1....0..0..0..0

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

CROSSREFS

Column 1 is A222364

Sequence in context: A180217 A270651 A222635 * A222616 A011762 A195780

Adjacent sequences:  A222646 A222647 A222648 * A222650 A222651 A222652

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 27 2013

STATUS

approved

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Last modified December 14 01:33 EST 2019. Contains 329978 sequences. (Running on oeis4.)