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 A222446 Sum of neighbor maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nX3 array 1
 8, 64, 420, 4056, 32720, 262104, 2082688, 16777216, 134217728, 1073741824, 8588539008, 68719476736, 549755813888, 4398046511104, 35184256942080, 281474976587776, 2251799813537792, 18014398509359104, 144115179143299072 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A222448 LINKS R. H. Hardin, Table of n, a(n) for n = 1..188 EXAMPLE Some solutions for n=3 ..1..0..1....1..0..0....0..1..0....0..0..0....1..0..0....1..1..0....0..1..0 ..1..1..1....1..0..0....0..0..1....1..1..1....1..1..0....0..0..0....0..0..1 ..1..0..0....0..0..1....0..0..0....1..0..1....0..1..0....0..0..1....1..0..1 CROSSREFS Sequence in context: A189105 A181214 A283859 * A239034 A213296 A223564 Adjacent sequences:  A222443 A222444 A222445 * A222447 A222448 A222449 KEYWORD nonn AUTHOR R. H. Hardin Feb 20 2013 STATUS approved

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Last modified February 24 01:16 EST 2020. Contains 332195 sequences. (Running on oeis4.)