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 A186623 Number of (n+2)X4 0..2 arrays with 3X3 subblock sums nondecreasing rightwards and downwards. 1
 317115, 9957573, 313250283, 9626194591, 205142945972, 4375747771546, 93024904363336, 1542711926710876, 25595116082268286, 424415611230113963, 5897079175874583945, 81949864725872441631, 1138621686844736898393 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A186625 LINKS R. H. Hardin, Table of n, a(n) for n = 1..80 EXAMPLE Some solutions for 6X4 ..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..0....0..0..0..0 ..0..0..0..1....2..0..2..2....1..1..0..2....0..0..1..1....1..1..0..2 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 ..1..1..1..0....0..1..1..1....0..0..2..2....2..2..0..1....1..2..1..2 ..0..2..1..2....2..2..2..1....0..2..0..2....0..0..1..2....2..2..0..2 CROSSREFS Sequence in context: A092014 A205984 A153749 * A202468 A210317 A205931 Adjacent sequences:  A186620 A186621 A186622 * A186624 A186625 A186626 KEYWORD nonn AUTHOR R. H. Hardin, Feb 24 2011 STATUS approved

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