Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.

A232776

Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.

Terms

    a(0) =118a(1) =1176a(2) =9607a(3) =71172a(4) =474271a(5) =2888324a(6) =16411386a(7) =87759236a(8) =445218879a(9) =2163198554a(10) =10117422745a(11) =45757881000a(12) =201068414833a(13) =861138559305

External references