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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A210131 Number of (n+1)X6 0..3 arrays with every 2X2 subblock having one, three or four distinct values, and new values 0..3 introduced in row major order 1 111993, 88392872, 68668190865, 53426898480029, 41562568796591219, 32333381562091308913, 25153548265096499157320, 19568045656061108846540126, 15222838587628954290925815053, 11842511977410697491841076989064 (list; graph; refs; listen; history; text; internal format) OFFSET 1,1 COMMENTS Column 5 of A210134 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..0..0..0..0..1..1....0..1..0..1..0..0....0..0..0..0..0..0....0..1..1..2..1..1 ..2..1..2..3..1..1....0..2..1..2..3..2....1..2..1..2..1..3....0..2..0..3..0..2 ..3..2..3..0..2..3....3..0..1..3..1..1....1..3..3..1..3..0....2..1..1..0..2..1 ..3..0..1..2..3..0....2..1..2..3..0..2....0..1..0..0..1..0....0..1..1..2..3..1 ..3..1..2..3..0..1....2..0..0..1..3..0....0..2..1..3..3..0....0..3..2..0..1..0 CROSSREFS Sequence in context: A203739 A172699 A180467 * A111332 A151841 A102497 Adjacent sequences: A210128 A210129 A210130 * A210132 A210133 A210134 KEYWORD nonn AUTHOR R. H. Hardin Mar 17 2012 STATUS approved

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Last modified August 18 18:17 EDT 2024. Contains 375273 sequences. (Running on oeis4.)