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 A187598 Number of (n+2)X4 0..2 arrays with no 2X2 subblock sum equal to any diagonal or antidiagonal neighbor 2X2 subblock sum 1
 226450, 8074640, 292759792, 10573764644, 381716567508, 13784634186006, 497795278276942, 17976310976633484, 649156690187966610, 23442274798739620648, 846544307284117366816, 30570298979230731956070 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A187600 LINKS R. H. Hardin, Table of n, a(n) for n = 1..200 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 ..1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1....1..0..0..1 ..0..0..0..0....1..0..0..0....0..0..0..0....1..0..0..0....0..0..0..0 ..2..2..2..2....0..2..1..1....0..2..1..1....0..2..1..0....1..2..0..2 ..1..0..1..0....0..0..2..2....2..2..0..0....2..0..1..2....2..2..2..1 ..0..2..0..1....2..1..1..1....1..1..2..2....2..1..0..0....2..1..1..0 CROSSREFS Sequence in context: A237032 A067141 A234775 * A061134 A179730 A287900 Adjacent sequences: A187595 A187596 A187597 * A187599 A187600 A187601 KEYWORD nonn AUTHOR R. H. Hardin Mar 11 2011 STATUS approved

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Last modified May 27 00:17 EDT 2024. Contains 372847 sequences. (Running on oeis4.)