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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 (list; table; graph; refs; listen; history; text; internal format)
 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 R. H. Hardin, Table of n, a(n) for n = 1..264 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 Adjacent sequences:  A184228 A184229 A184230 * A184232 A184233 A184234 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 10 2011 STATUS approved

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Last modified September 18 01:39 EDT 2021. Contains 347504 sequences. (Running on oeis4.)