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A220805 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 and vertical neighbors in a random 0..3 nXk array 5
2, 2, 2, 8, 16, 8, 16, 48, 48, 16, 24, 256, 512, 256, 24, 64, 928, 4096, 4096, 928, 64, 128, 4096, 30766, 62648, 30766, 4096, 128, 232, 15820, 262144, 1048576, 1048576, 262144, 15820, 232, 512, 65536, 2097152, 16777216, 33358976, 16777216, 2097152, 65536 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

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

....2.....16.......48.......256........928.......4096.......15820......65536

....8.....48......512......4096......30766.....262144.....2097152...16728064

...16....256.....4096.....62648....1048576...16777216...268435456.4294967296

...24....928....30766...1048576...33358976.1073741824.34348186888

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

..128..15820..2097152.268435456

..232..65536.16728064

..512.259584

.1024

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Column 1 is A220172

Sequence in context: A222448 A220254 A220177 * A298647 A068718 A075097

Adjacent sequences:  A220802 A220803 A220804 * A220806 A220807 A220808

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Dec 21 2012

STATUS

approved

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Last modified September 30 13:02 EDT 2022. Contains 357105 sequences. (Running on oeis4.)