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 A232362 Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically 0
 1, 23, 2411, 1704619, 8716796353, 316516682114845, 81520970965131916225, 149039167947057559464970099 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A232368 LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=3 ..2..1..1....2..0..2....0..0..2....0..1..1....1..1..2....2..0..2....2..2..1 ..0..1..2....2..1..1....1..1..2....0..2..2....2..2..2....1..1..2....1..2..0 ..2..1..1....2..0..2....2..2..1....1..2..1....2..1..1....0..2..2....2..1..0 CROSSREFS Sequence in context: A132937 A068655 A336170 * A233226 A233446 A088385 Adjacent sequences: A232359 A232360 A232361 * A232363 A232364 A232365 KEYWORD nonn AUTHOR R. H. Hardin, Nov 23 2013 STATUS approved

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Last modified July 12 12:19 EDT 2024. Contains 374247 sequences. (Running on oeis4.)