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 A207295 Number of (n+1)X(n+1) 0..3 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing 0
 256, 93991, 158967751, 1951282415919, 189688562729242206 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A207300 LINKS EXAMPLE Some solutions for n=4 ..1..0..0..0..0....3..2..3..3..3....3..1..3..0..1....0..2..0..1..0 ..3..0..1..3..1....0..0..0..0..0....2..0..0..0..0....2..0..0..3..2 ..3..0..1..3..1....2..2..2..2..3....1..0..0..0..2....2..0..0..3..1 ..1..0..0..0..0....1..1..1..1..2....0..0..1..0..3....2..2..0..1..0 ..1..0..2..2..0....0..0..0..3..2....3..0..1..0..1....0..2..0..2..0 CROSSREFS Sequence in context: A222101 A264347 A223199 * A205927 A223354 A236941 Adjacent sequences:  A207292 A207293 A207294 * A207296 A207297 A207298 KEYWORD nonn AUTHOR R. H. Hardin Feb 16 2012 STATUS approved

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Last modified May 24 06:14 EDT 2022. Contains 354005 sequences. (Running on oeis4.)