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 A281610 Number of 7Xn 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 0
 365, 52193, 736757, 32354824, 1421127262, 56764280423, 2352459742664, 97337283237331, 4014393674152359 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A281605. LINKS Table of n, a(n) for n=1..9. EXAMPLE Some solutions for n=2 ..0..1. .0..0. .0..0. .0..1. .0..1. .0..1. .0..0. .0..1. .0..1. .0..1 ..0..1. .1..2. .1..1. .2..0. .0..2. .0..2. .1..1. .2..1. .2..1. .2..1 ..2..0. .0..1. .0..0. .1..2. .0..1. .0..2. .2..2. .1..0. .2..0. .2..0 ..1..2. .2..0. .2..1. .1..2. .2..1. .0..2. .0..0. .2..0. .2..1. .0..1 ..1..0. .2..0. .2..0. .2..1. .2..0. .1..0. .1..2. .0..2. .1..0. .2..1 ..2..0. .0..1. .1..0. .2..1. .0..1. .1..0. .1..0. .0..2. .1..2. .0..2 ..1..0. .0..2. .0..1. .2..0. .0..1. .2..2. .1..2. .0..2. .2..0. .0..1 CROSSREFS Cf. A281605. Sequence in context: A275357 A275147 A275227 * A233072 A275503 A275400 Adjacent sequences: A281607 A281608 A281609 * A281611 A281612 A281613 KEYWORD nonn AUTHOR R. H. Hardin, Jan 25 2017 STATUS approved

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Last modified September 9 04:58 EDT 2024. Contains 375759 sequences. (Running on oeis4.)