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 A238071 Number of (n+1)X(7+1) 0..3 arrays with the maximum minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
 17963540, 1301417096, 69678083388, 4182799295184, 300828077426994, 21843683698746812, 1736639229342029538, 120723056177502522944, 9134690286446667742572, 685193215378517012130192 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A238072 LINKS R. H. Hardin, Table of n, a(n) for n = 1..20 EXAMPLE Some solutions for n=1 ..0..0..0..1..2..3..1..2....0..0..0..2..1..2..3..1....0..0..1..2..1..0..1..3 ..2..0..1..2..1..2..0..1....2..0..1..2..1..0..2..2....0..0..0..2..2..2..3..2 CROSSREFS Sequence in context: A083619 A257550 A282670 * A271445 A073032 A222977 Adjacent sequences:  A238068 A238069 A238070 * A238072 A238073 A238074 KEYWORD nonn AUTHOR R. H. Hardin, Feb 17 2014 STATUS approved

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Last modified April 8 04:26 EDT 2020. Contains 333312 sequences. (Running on oeis4.)