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A266135 Number of 5Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself. 1
1, 189, 2099, 4336, 62104, 1285961, 16386099, 124675418, 1670106261, 27030614673, 364728678843, 4110151431884, 55582288536407, 820578817704699, 11258792567726911, 142486826279283951, 1934013157303232327 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 5 of A266131.
LINKS
EXAMPLE
Some solutions for n=4
..2..1..1..1....1..0..0..1....1..2..1..1....1..0..1..2....2..1..0..1
..2..1..0..0....1..1..1..1....0..0..0..1....2..1..1..2....2..1..1..0
..1..3..2..0....1..1..1..1....0..2..1..1....0..1..2..2....2..3..2..2
..0..0..2..1....1..0..0..2....1..2..2..1....2..2..1..2....0..1..1..2
..0..0..0..1....0..2..1..1....0..0..0..0....0..1..1..0....1..0..1..2
CROSSREFS
Cf. A266131.
Sequence in context: A347383 A297229 A211819 * A133351 A267993 A286791
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 21 2015
STATUS
approved

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Last modified July 25 04:49 EDT 2024. Contains 374586 sequences. (Running on oeis4.)