A220254 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 king-move neighbors in a random 0..2 nXk array

2, 2, 2, 8, 16, 8, 16, 48, 48, 16, 24, 256, 324, 256, 24, 64, 928, 4096, 4096, 928, 64, 128, 4096, 31744, 45792, 31744, 4096, 128, 232, 15872, 262144, 1048576, 1048576, 262144, 15872, 232, 512, 65536, 2011776, 16777216, 33350528, 16777216, 2011776, 65536

Offset

1,1

Comments

Table starts

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

....2.....16.......48.......256........928.......4096.....15872......65536

....8.....48......324......4096......31744.....262144...2011776...16728064

...16....256.....4096.....45792....1048576...16777216.268435456.4294967296

...24....928....31744...1048576...33350528.1073741824

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

..128..15872..2011776.268435456

..232..65536.16728064

..512.259584

.1024

Links

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

Example

Some solutions for n=3 k=4
..0..1..0..0....0..0..0..1....1..0..0..0....0..1..0..1....0..0..0..0
..0..1..0..0....0..0..0..0....1..0..1..0....0..1..0..0....1..1..0..0
..1..1..1..1....1..0..1..0....1..1..0..0....0..0..1..0....1..1..1..0

Crossrefs

Column 1 is A220172

Sequence in context: A168272 A222448 A360309 * A220177 A220805 A298647

Adjacent sequences: A220251 A220252 A220253 * A220255 A220256 A220257

Keyword

nonn,tabl

Author

R. H. Hardin Dec 08 2012

Status

approved