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 A203896 T(n,k)=Number of (n+1)X(k+1) 0..4 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) such that rows of b(i,j) and columns of c(i,j) are lexicographically nondecreasing 9
 205, 1940, 1940, 16842, 72423, 16842, 131432, 2634939, 2634939, 131432, 940270, 77658673, 499486878, 77658673, 940270, 6287755, 1905833494, 74956749750, 74956749750, 1905833494, 6287755, 39889619, 40229386532, 9042090593477 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......205...........1940...............16842.................131432 ......1940..........72423.............2634939...............77658673 .....16842........2634939...........499486878............74956749750 ....131432.......77658673.........74956749750.........58500223468696 ....940270.....1905833494.......9042090593477......36337203300044690 ...6287755....40229386532.....909510089895106...18604524788467098072 ..39889619...749063366121...78614554935810312.8110443447372955603425 .242721211.12535141537226.5968834286653520880 LINKS R. H. Hardin, Table of n, a(n) for n = 1..60 EXAMPLE Some solutions for n=4 k=3 ..3..4..3..3....2..1..2..3....3..1..0..4....3..3..2..2....0..3..4..0 ..4..3..4..4....2..3..3..4....1..3..4..3....3..3..4..4....3..1..0..4 ..3..4..4..4....1..4..4..3....3..4..3..1....2..4..4..4....1..3..4..4 ..4..4..2..4....1..4..4..3....4..3..4..3....2..4..4..4....2..3..2..2 ..4..4..2..4....3..3..1..4....4..4..3..0....2..4..4..4....2..3..4..0 CROSSREFS Sequence in context: A015974 A203870 A203863 * A203889 A226564 A077457 Adjacent sequences: A203893 A203894 A203895 * A203897 A203898 A203899 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 07 2012 STATUS approved

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Last modified December 4 15:16 EST 2023. Contains 367563 sequences. (Running on oeis4.)