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 A278795 Number of nX4 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes. 1
 65, 34348, 7196852, 1038462658, 118098679534, 11262497170744, 935318457135084, 69345852411053594, 4667384731526157594, 288452158499377948116, 16500830203851397115132, 878891304960177782094219 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A278798. LINKS R. H. Hardin, Table of n, a(n) for n = 1..133 EXAMPLE Some solutions for n=2 ..3..3..0..1. .2..2..3..0. .2..1..2..3. .2..3..0..0. .1..2..3..0 ..3..1..0..1. .2..0..1..3. .2..3..1..1. .0..3..3..3. .3..2..3..0 CROSSREFS Cf. A278798. Sequence in context: A084225 A278550 A177652 * A289946 A219564 A183238 Adjacent sequences:  A278792 A278793 A278794 * A278796 A278797 A278798 KEYWORD nonn AUTHOR R. H. Hardin, Nov 28 2016 STATUS approved

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Last modified January 27 01:45 EST 2021. Contains 340443 sequences. (Running on oeis4.)