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A184231
T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock diagonal sum differing from its antidiagonal sum by more than 3
10
15, 57, 57, 180, 411, 180, 621, 2318, 2318, 621, 2061, 14641, 20958, 14641, 2061, 6966, 88103, 224156, 224156, 88103, 6966, 23355, 541936, 2227254, 4207437, 2227254, 541936, 23355, 78597, 3302001, 22904858, 72246797, 72246797, 22904858, 3302001
OFFSET
1,1
COMMENTS
Table starts
.....15........57..........180.............621..............2061
.....57.......411.........2318...........14641.............88103
....180......2318........20958..........224156...........2227254
....621.....14641.......224156.........4207437..........72246797
...2061.....88103......2227254........72246797........2100723171
...6966....541936.....22904858......1292899174.......64280495958
..23355...3302001....231988508.....22718557269.....1922921988456
..78597..20204829...2366228756....402560143085....58125919236791
.264060.123402988..24059229300...7106563915316..1748844715494641
.887841.754319381.244980260166.125668351802785.52730125376777241
LINKS
EXAMPLE
Some solutions for 4X3
..1..2..1....2..0..2....1..0..3....3..1..3....3..1..3....0..3..1....1..3..1
..3..0..3....0..2..0....0..3..1....0..3..1....0..3..1....2..0..2....2..0..2
..0..3..2....3..0..3....2..0..3....3..0..2....1..0..3....1..3..1....0..3..0
..3..0..3....1..2..0....1..3..2....2..3..0....0..3..0....2..0..3....2..0..1
CROSSREFS
Sequence in context: A219849 A157856 A082820 * A039341 A043164 A043944
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Jan 10 2011
STATUS
approved