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 A221071 Sum of neighbor maps: number of nX7 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their king-move neighbors in a random 0..3 nX7 array 0
 128, 1364, 2097152, 268435456, 25241048576, 4398046511104, 562949953421312, 70342550622109696 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A221072 LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=3 ..0..0..0..0..1..1..1....0..0..1..0..0..1..1....0..0..0..0..1..1..1 ..0..0..1..0..0..0..0....0..0..1..0..0..1..0....0..0..0..0..1..0..0 ..0..0..0..0..0..0..0....0..1..1..1..0..0..1....0..1..0..0..0..1..0 CROSSREFS Sequence in context: A133061 A188822 A181211 * A070055 A247930 A200842 Adjacent sequences: A221068 A221069 A221070 * A221072 A221073 A221074 KEYWORD nonn AUTHOR R. H. Hardin Dec 31 2012 STATUS approved

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Last modified December 9 20:47 EST 2023. Contains 367695 sequences. (Running on oeis4.)