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 A201986 Number of nX4 zero-sum -3..3 arrays with rows and columns lexicographically nondecreasing 3
 18, 14107, 11648559, 7375608084, 3674187761233, 1507315600099908, 526500713340421071, 160321266022658991751, 43304255513243305231273, 10515069913569825177115136, 2319701107323309166913311672 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A201989 LINKS R. H. Hardin, Table of n, a(n) for n = 1..12 EXAMPLE Some solutions for n=2 .-3.-3.-1..3...-3.-2..0..3...-2.-1.-1..2...-2..0..0..3...-3.-2.-1..3 .-1..0..2..3...-1..0..3..0....0..1..1..0...-1.-1..2.-1...-1..2..3.-1 CROSSREFS Sequence in context: A248804 A060617 A222202 * A153301 A129042 A262359 Adjacent sequences: A201983 A201984 A201985 * A201987 A201988 A201989 KEYWORD nonn AUTHOR R. H. Hardin Dec 07 2011 STATUS approved

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Last modified December 6 08:25 EST 2023. Contains 367600 sequences. (Running on oeis4.)