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A221666 T(n,k)=Sum of neighbor maps: number of nXk binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nXk array 6
2, 2, 4, 8, 12, 8, 16, 64, 48, 16, 24, 256, 512, 256, 32, 64, 992, 3772, 3772, 856, 64, 128, 4096, 31744, 63200, 32768, 4096, 128, 232, 16384, 262144, 1048576, 1048576, 262144, 15872, 256, 512, 65344, 2097152, 16777216, 33421056, 16777216, 2097152, 65344 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

....2......2........8........16.........24.........64.......128........232

....4.....12.......64.......256........992.......4096.....16384......65344

....8.....48......512......3772......31744.....262144...2097152...16728064

...16....256.....3772.....63200....1048576...16777216.268281856.4294967296

...32....856....32768...1048576...33421056.1073741824

...64...4096...262144..16777216.1073741824

..128..15872..2097152.268281856

..256..65344.16777216

..512.259584

.1024

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..59

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Column 1 is A000079

Row 1 is A220172

Sequence in context: A324039 A019463 A152763 * A086700 A332004 A104221

Adjacent sequences:  A221663 A221664 A221665 * A221667 A221668 A221669

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 21 2013

STATUS

approved

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Last modified January 23 23:01 EST 2022. Contains 350515 sequences. (Running on oeis4.)