T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with the (lower) median of each row and column nondecreasing.
A237548
T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with the (lower) median of each row and column nondecreasing.
Terms
- a(0) =3470a(1) =53831a(2) =53831a(3) =845952a(4) =3203193a(5) =845952a(6) =11887072a(7) =143951490a(8) =143951490a(9) =11887072a(10) =179403984a(11) =7420279118a(12) =30191128785a(13) =7420279118a(14) =179403984a(15) =2431745813a(16) =324957818406a(19) =324957818406
External references
- oeis: A237548