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 A216608 Number of horizontal, diagonal and antidiagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order 0
 1, 1, 2, 203, 83437, 6423127757, 2043835395791757, 324446722340564335642246 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Diagonal of A216612 LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=4 ..x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1 ..2..x..3..x....2..x..3..x....1..x..2..x....1..x..2..x....2..x..3..x ..x..4..x..1....x..4..x..1....x..3..x..4....x..0..x..3....x..4..x..1 ..5..x..0..x....1..x..5..x....2..x..5..x....3..x..2..x....1..x..3..x CROSSREFS Sequence in context: A203773 A349982 A209185 * A238819 A110899 A281126 Adjacent sequences: A216605 A216606 A216607 * A216609 A216610 A216611 KEYWORD nonn AUTHOR R. H. Hardin Sep 10 2012 STATUS approved

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Last modified June 2 22:56 EDT 2023. Contains 363102 sequences. (Running on oeis4.)