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 A222448 T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nXk array 4
 2, 2, 2, 8, 14, 8, 16, 64, 64, 16, 24, 210, 420, 210, 24, 64, 1024, 4056, 4056, 1024, 64, 128, 4000, 32720, 65536, 32720, 4000, 128, 232, 16288, 262104, 1048576, 1048576, 262104, 16288, 232, 512, 65536, 2082688, 16750154, 33553664, 16750154, 2082688 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ....2......2........8........16.........24.........64.........128........232 ....2.....14.......64.......210.......1024.......4000.......16288......65536 ....8.....64......420......4056......32720.....262104.....2082688...16777216 ...16....210.....4056.....65536....1048576...16750154...268430848.4294967008 ...24...1024....32720...1048576...33553664.1073741824.34359738368 ...64...4000...262104..16750154.1073741824 ..128..16288..2082688.268430848 ..232..65536.16777216 ..512.260080 .1024 LINKS R. H. Hardin, Table of n, a(n) for n = 1..60 EXAMPLE Some solutions for n=3 k=4 ..1..1..1..0....1..1..1..0....1..1..1..1....0..1..0..1....1..1..1..1 ..0..1..1..1....0..0..0..1....0..1..1..0....1..1..1..0....1..0..0..0 ..0..1..1..0....0..0..0..1....0..1..1..1....0..1..0..0....0..1..0..0 CROSSREFS Column 1 is A220172 Sequence in context: A221072 A339162 A168272 * A220254 A220177 A220805 Adjacent sequences:  A222445 A222446 A222447 * A222449 A222450 A222451 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 20 2013 STATUS approved

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Last modified July 6 14:10 EDT 2022. Contains 355110 sequences. (Running on oeis4.)