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 A223126 T(n,k)=Number of nXk 0..2 arrays with no more than floor(nXk/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 14
 1, 1, 2, 2, 10, 5, 10, 64, 72, 14, 24, 489, 1154, 664, 41, 72, 3599, 28907, 33604, 5376, 122, 168, 27803, 444555, 1780641, 622568, 47968, 365, 664, 212771, 11814919, 95995609, 112106293, 18539512, 406400, 1094, 1632, 1656545, 186184618 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Table starts .....1...........1................2....................10 .....2..........10...............64...................489 .....5..........72.............1154.................28907 ....14.........664............33604...............1780641 ....41........5376...........622568.............112106293 ...122.......47968.........18539512............7157970340 ...365......406400........354680696..........461597847603 ..1094.....3585408......10596201904........29989116614529 ..3281....30987264.....206498940320......1959625907209239 ..9842...272565760....6177157242496....128645318481467647 .29525..2378450944..121870726469408...8477443608456769792 .88574.20921604096.3647201710914880.560422268684443059564 LINKS R. H. Hardin, Table of n, a(n) for n = 1..125 EXAMPLE Some solutions for n=3 k=4 ..0..1..0..2....0..1..0..0....0..1..0..2....0..1..2..0....0..1..0..2 ..2..1..1..2....0..1..2..2....0..1..2..2....2..0..1..1....2..0..2..0 ..0..0..1..0....0..1..0..0....2..2..1..2....0..2..2..0....1..2..1..0 CROSSREFS Column 1 is A007051(n-1) Row 1 is A222848 Sequence in context: A163937 A083457 A163808 * A127058 A242002 A094359 Adjacent sequences: A223123 A223124 A223125 * A223127 A223128 A223129 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 15 2013 STATUS approved

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Last modified November 26 21:15 EST 2022. Contains 358362 sequences. (Running on oeis4.)