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 A205195 Number of (n+1)X3 0..3 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero 1
 1720, 47900, 1256641, 25243114, 469617426, 7313092616, 106645806148, 1386271311184, 17063356609500, 194264369735315, 2113694462920360, 21750782413280669, 215532030982525812, 2048376973087641777 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A205198 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..3..2..1....1..2..1....3..3..0....1..0..1....0..2..2....1..0..3....0..3..0 ..1..1..2....1..3..2....1..0..1....0..1..1....1..0..3....3..3..2....2..0..3 ..3..2..3....1..3..0....2..3..1....1..1..1....1..2..1....1..3..2....1..3..2 ..3..0..1....1..3..2....0..2..1....3..3..0....0..2..2....3..3..3....1..3..1 ..2..2..3....1..3..2....2..1..2....3..1..1....1..2..1....2..2..3....1..3..2 CROSSREFS Sequence in context: A276458 A252857 A234906 * A200958 A048958 A145648 Adjacent sequences:  A205192 A205193 A205194 * A205196 A205197 A205198 KEYWORD nonn AUTHOR R. H. Hardin Jan 23 2012 STATUS approved

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Last modified January 26 06:23 EST 2022. Contains 350572 sequences. (Running on oeis4.)