A185866 T(n,k)=1/128 the number of (n+2)X(k+2) binary arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace

4, 22, 22, 124, 164, 124, 694, 1254, 1254, 694, 3892, 9604, 13662, 9604, 3892, 21814, 73542, 148747, 148747, 73542, 21814, 122284, 563180, 1625738, 2306566, 1625738, 563180, 122284, 685462, 4312662, 17735956, 35696805, 35696805, 17735956

Offset

1,1

Comments

Table starts

........4.........22..........124............694.............3892

.......22........164.........1254...........9604............73542

......124.......1254........13662.........148747..........1625738

......694.......9604.......148747........2306566.........35696805

.....3892......73542......1625738.......35696805........791291609

....21814.....563180.....17735956......552341314......17619474017

...122284....4312662....193660943.....8546141676.....392747944918

...685462...33025492...2113733736...132241750157....8751459810146

..3842404..252901110..23075049417..2046201477768..195057037517168

.21538774.1936659260.251881260545.31662104131197.4347061143534861

Links

R. H. Hardin, Table of n, a(n) for n = 1..363

Example

Some solutions for 5X4
..0..0..1..1....0..1..0..1....1..0..0..0....1..0..0..1....1..0..0..1
..1..0..1..1....1..0..1..0....0..1..1..0....0..1..0..0....0..1..0..0
..0..1..0..1....1..1..0..0....1..0..1..0....0..0..1..1....1..0..1..1
..0..1..1..0....1..1..0..0....0..1..1..1....0..0..1..0....0..1..0..1
..0..1..1..1....1..1..1..1....1..0..1..0....0..1..0..0....1..1..0..0

Crossrefs

Sequence in context: A335697 A121006 A268924 * A043061 A009925 A059653

Adjacent sequences: A185863 A185864 A185865 * A185867 A185868 A185869

Keyword

nonn,tabl

Author

R. H. Hardin Feb 05 2011

Status

approved