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 A253661 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally 1
 7027770, 65613880, 1302707432, 21597168872, 395496194486, 6834913762178, 120664495291772, 2048348414354484, 35489593077789928, 612083566702759784, 10460295715223145138, 178928527278695650414, 3077810357108454233698 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A253662 LINKS R. H. Hardin, Table of n, a(n) for n = 1..35 EXAMPLE Some solutions for n=1 ..0..0..0..1..2..0..1..1....0..0..0..0..1..0..2..2....0..0..0..0..2..0..1..0 ..1..0..2..2..0..0..2..0....1..0..2..0..2..2..1..2....2..0..1..1..0..2..2..0 CROSSREFS Sequence in context: A106786 A206634 A253313 * A088286 A175530 A320623 Adjacent sequences: A253658 A253659 A253660 * A253662 A253663 A253664 KEYWORD nonn AUTHOR R. H. Hardin, Jan 07 2015 STATUS approved

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Last modified December 6 03:00 EST 2023. Contains 367594 sequences. (Running on oeis4.)