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 A208413 Number of 6Xn 0..3 arrays with new values 0..3 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors 1
 187, 700075, 2646531062, 10084768380770, 38410047476679936, 146298576850884166522, 557229580446475130201608, 2122405243795588131572978866, 8083928267793741312454314127058 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 6 of A208408 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..0..1..0..0....0..0..0..0....0..0..0..0....0..0..0..1....0..0..0..0 ..1..0..1..0....0..1..0..1....1..1..2..1....1..2..2..0....1..1..2..0 ..2..3..1..3....2..1..3..2....1..2..1..3....1..3..1..3....2..2..1..0 ..2..2..1..1....1..3..0..3....2..3..1..0....1..0..3..3....3..2..2..0 ..3..2..0..1....1..0..2..1....0..1..1..1....3..2..1..3....2..3..3..0 ..0..3..3..1....0..3..3..3....1..2..2..3....2..2..2..2....1..2..3..2 CROSSREFS Sequence in context: A241118 A208199 A208406 * A198905 A198252 A070257 Adjacent sequences: A208410 A208411 A208412 * A208414 A208415 A208416 KEYWORD nonn AUTHOR R. H. Hardin Feb 26 2012 STATUS approved

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Last modified September 19 17:13 EDT 2024. Contains 376014 sequences. (Running on oeis4.)