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A203940 Number of (n+1)X5 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

%I #5 Mar 31 2012 12:37:00

%S 269254,15288484,568991365,14543414270,280030480105,4247443759982,

%T 53282169761154,567792128651642,5278020856578892,43548335100477580,

%U 324072165870441838,2200830015494746254,13783747923033708715

%N Number of (n+1)X5 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

%C Column 4 of A203944

%H R. H. Hardin, <a href="/A203940/b203940.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..2..2..3..0..1....0..1..4..0..2....4..0..1..5..3....4..5..4..4..4

%e ..1..3..2..5..4....0..4..1..5..4....0..4..3..3..5....5..4..5..5..5

%e ..5..3..4..4..5....4..2..5..4..5....0..4..5..5..5....4..5..5..5..5

%e ..3..5..4..5..4....3..5..4..5..4....0..5..5..5..5....4..5..5..5..5

%e ..5..4..5..4..5....4..4..5..4..5....4..5..5..5..5....4..5..5..5..5

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 08 2012

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Last modified August 9 09:32 EDT 2024. Contains 375035 sequences. (Running on oeis4.)