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 A204955 Number of (n+1)X(n+1) 0..1 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing 0
 16, 277, 12714, 1442543, 476276892, 470866502871, 1559031370472325 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A204962 LINKS Table of n, a(n) for n=1..7. EXAMPLE Some solutions for n=4 ..0..1..1..0..1....1..1..0..0..1....0..1..1..1..1....0..1..0..0..0 ..0..0..0..1..0....0..0..0..1..1....0..1..0..1..0....0..1..0..0..0 ..1..0..1..0..1....0..0..1..1..0....1..0..0..0..1....0..0..0..1..1 ..1..1..0..0..1....0..0..1..1..1....1..1..0..1..0....1..1..0..1..0 ..1..0..1..0..0....1..1..0..1..1....0..1..1..1..1....1..0..1..0..0 CROSSREFS Sequence in context: A231695 A363754 A004382 * A189955 A038758 A240336 Adjacent sequences: A204952 A204953 A204954 * A204956 A204957 A204958 KEYWORD nonn AUTHOR R. H. Hardin Jan 20 2012 STATUS approved

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Last modified May 30 17:56 EDT 2024. Contains 372971 sequences. (Running on oeis4.)