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 A233681 Number of (n+1)X(7+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 6 1
 116872, 3145968, 81243904, 3057995568, 95799636288, 3879764059776, 127711201373696, 5205568118816384, 174889319781646592, 7078287652666770944, 240929096530590043904, 9661566569156043828736, 332270905126450553744128 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A233682 LINKS R. H. Hardin, Table of n, a(n) for n = 1..111 EXAMPLE Some solutions for n=1 ..1..2..1..2..1..1..3..1....2..3..3..1..2..1..3..1....0..1..2..2..2..1..1..1 ..3..2..0..0..0..2..2..1....2..1..2..1..3..1..2..2....2..1..3..1..0..0..2..3 CROSSREFS Sequence in context: A046407 A156417 A156865 * A246557 A289911 A206204 Adjacent sequences:  A233678 A233679 A233680 * A233682 A233683 A233684 KEYWORD nonn AUTHOR R. H. Hardin, Dec 14 2013 STATUS approved

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Last modified December 6 09:33 EST 2021. Contains 349563 sequences. (Running on oeis4.)