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 A223109 Number of 6Xn 0..2 arrays with exactly floor(6Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 0
 0, 16352, 6939648, 2870336499, 1153663937586, 460895553576913, 184306007437994168, 73918403027984409534, 29745203793179733648468, 12008412523648988394871332 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row 6 of A223104 LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=3 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 ..0..1..1....0..0..0....0..1..0....0..1..1....0..0..1....0..0..1....0..1..2 ..2..0..1....1..2..1....1..2..2....1..2..1....1..1..0....1..2..1....0..1..0 ..1..2..0....1..1..2....2..0..1....1..2..1....1..2..0....0..2..1....0..2..1 ..1..0..2....2..1..0....1..2..0....0..2..1....1..2..1....2..1..2....0..0..0 ..0..1..0....0..2..1....0..2..1....0..1..0....1..0..1....2..0..1....2..2..1 CROSSREFS Sequence in context: A337417 A013690 A247826 * A126824 A236778 A344102 Adjacent sequences: A223106 A223107 A223108 * A223110 A223111 A223112 KEYWORD nonn AUTHOR R. H. Hardin Mar 14 2013 STATUS approved

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Last modified June 24 19:44 EDT 2024. Contains 373690 sequences. (Running on oeis4.)