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 A278723 Number of nX4 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order. 1
 35, 1050, 33466, 1058494, 30942600, 815294800, 19328645044, 414671691083, 8109321869307, 145580441811727, 2414555760264316, 37210586178295489, 535549333443944707, 7231147745218833289, 91971617342903492615 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A278727. LINKS R. H. Hardin, Table of n, a(n) for n = 1..133 EXAMPLE Some solutions for n=3 ..1..0..0..0. .1..0..0..0. .2..2..1..0. .3..1..1..1. .1..1..0..0 ..1..0..0..0. .3..1..0..0. .3..0..0..1. .3..2..2..0. .2..1..2..0 ..1..3..1..0. .3..3..2..2. .3..2..1..0. .3..3..1..2. .3..2..1..2 CROSSREFS Cf. A278727. Sequence in context: A240826 A210313 A049395 * A215296 A209180 A115492 Adjacent sequences:  A278720 A278721 A278722 * A278724 A278725 A278726 KEYWORD nonn AUTHOR R. H. Hardin, Nov 27 2016 STATUS approved

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Last modified October 20 07:41 EDT 2020. Contains 337897 sequences. (Running on oeis4.)