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 A216465 Number of horizontal, diagonal and antidiagonal neighbor colorings of the even squares of a 7Xn array with new integer colors introduced in row major order 0
 15, 203, 36401, 4213597, 8195008751, 3376465219485, 22530453266592757, 20538493137072741201 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A216460 LINKS EXAMPLE Some solutions for n=4 ..0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x ..x..2..x..0....x..2..x..0....x..2..x..0....x..2..x..0....x..2..x..0 ..0..x..3..x....0..x..3..x....0..x..1..x....0..x..3..x....0..x..3..x ..x..4..x..2....x..1..x..2....x..2..x..3....x..4..x..1....x..2..x..4 ..5..x..0..x....4..x..5..x....1..x..4..x....1..x..5..x....1..x..5..x ..x..3..x..2....x..6..x..3....x..0..x..1....x..6..x..4....x..4..x..1 ..2..x..1..x....5..x..4..x....4..x..3..x....3..x..0..x....2..x..3..x CROSSREFS Sequence in context: A178507 A012566 A238992 * A215903 A070968 A075280 Adjacent sequences:  A216462 A216463 A216464 * A216466 A216467 A216468 KEYWORD nonn AUTHOR R. H. Hardin Sep 07 2012 STATUS approved

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Last modified October 23 02:26 EDT 2020. Contains 337962 sequences. (Running on oeis4.)