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 A230511 Number of nX4 0..7 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 8, and upper left element zero 1
 0, 2, 170, 4648, 129874, 4038314, 129829460, 4177480490, 133348597190, 4239583476464, 134710145140230, 4281665864448554, 136114979870612832, 4327211619948091138, 137562471021655686798, 4373060580042549915844 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Column 4 of A230513 LINKS R. H. Hardin, Table of n, a(n) for n = 1..24 EXAMPLE Some solutions for n=3 ..0..1..2..3....0..1..2..3....0..3..2..1....0..1..0..7....0..7..0..7 ..7..0..1..4....5..0..7..4....1..4..5..0....1..2..3..4....1..2..1..6 ..6..7..6..5....6..7..6..5....2..3..6..7....0..7..6..5....2..3..4..5 CROSSREFS Sequence in context: A005020 A157316 A007760 * A209607 A243230 A051030 Adjacent sequences: A230508 A230509 A230510 * A230512 A230513 A230514 KEYWORD nonn AUTHOR R. H. Hardin, Oct 21 2013 STATUS approved

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Last modified January 29 21:02 EST 2023. Contains 359931 sequences. (Running on oeis4.)