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 A237563 Number of (n+1)X(4+1) 0..2 arrays with the upper median plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
 4984, 36168, 272828, 2161168, 16418704, 126608036, 977290740, 7535608804, 58063606256, 448289864392, 3456613948984, 26668571599444, 205730883605708, 1587504816424160, 12247201217867592, 94497740674303132, 729079328234055112 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A237567 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=2 ..2..0..1..0..0....1..0..0..1..2....2..2..2..1..2....1..2..1..0..2 ..2..2..2..1..2....1..1..1..2..0....0..1..2..1..1....1..0..0..0..1 ..1..0..2..0..1....2..2..0..2..2....1..1..2..2..2....1..0..2..1..2 CROSSREFS Sequence in context: A254696 A203064 A239506 * A248486 A070001 A145540 Adjacent sequences: A237560 A237561 A237562 * A237564 A237565 A237566 KEYWORD nonn AUTHOR R. H. Hardin, Feb 09 2014 STATUS approved

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Last modified September 19 16:34 EDT 2024. Contains 376014 sequences. (Running on oeis4.)