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A187600 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum 4
12780, 226450, 226450, 4034228, 8074640, 4034228, 71799716, 292759792, 292759792, 71799716, 1277660426, 10573764644, 21834817212, 10573764644, 1277660426, 22737087954, 381716567508, 1616392693134, 1616392693134 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
........12780.........226450.........4034228........71799716......1277660426
.......226450........8074640.......292759792.....10573764644....381716567508
......4034228......292759792.....21834817212...1616392693134.119535001467744
.....71799716....10573764644...1616392693134.244456883399928
...1277660426...381716567508.119535001467744
..22737087954.13784634186006
.404628180446
LINKS
EXAMPLE
Some solutions for 5X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..1....0..0..0..0
..2..0..1..2....1..0..1..2....0..1..0..1....1..0..2..1....1..2..2..2
..2..2..2..0....1..0..1..0....1..2..0..1....2..0..0..0....0..2..1..2
..0..2..2..2....1..1..1..2....0..1..2..1....1..1..1..0....0..2..1..2
CROSSREFS
Sequence in context: A207056 A210105 A235720 * A187597 A203273 A217184
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 11 2011
STATUS
approved

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Last modified May 17 19:53 EDT 2024. Contains 372607 sequences. (Running on oeis4.)