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 A203939 Number of (n+1)X4 0..5 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively 1
 36672, 1350442, 32094464, 568991365, 7806803388, 88637852693, 853966571340, 7204888459175, 54167606326812, 369279272035480, 2310457600833830, 13412611572570908, 72857443060898091, 373081682057371249 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A203944 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..4..0..5..2....1..4..0..4....5..3..4..5....1..1..2..2....0..0..2..4 ..0..4..2..5....4..1..5..5....3..5..4..5....1..1..5..5....0..0..4..4 ..4..1..5..4....0..5..5..5....5..4..5..4....5..5..5..5....3..3..3..5 ..0..5..4..5....0..5..5..5....4..5..4..5....5..5..5..5....3..3..3..5 ..5..4..5..4....1..5..5..5....5..4..5..5....5..5..5..5....1..5..5..3 CROSSREFS Sequence in context: A250540 A251797 A143369 * A061739 A232135 A212467 Adjacent sequences: A203936 A203937 A203938 * A203940 A203941 A203942 KEYWORD nonn AUTHOR R. H. Hardin Jan 08 2012 STATUS approved

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Last modified June 18 18:01 EDT 2024. Contains 373486 sequences. (Running on oeis4.)