Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.
A233114
Number of (n+1)X(1+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing.
Terms
- a(0) =29a(1) =123a(2) =464a(3) =1636a(4) =5523a(5) =18027a(6) =57505a(7) =180104a(8) =557624a(9) =1710232a(10) =5214096a(11) =15814973a(12) =47828131a(13) =144246386a(14) =434433284a(15) =1306430965a(16) =3926428842a(17) =11790818795a(18) =35400533788a(19) =106233224821a(20) =318796252622a(21) =956379509076
External references
- oeis: A233114