T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal.

A236828

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock equal.

Terms

    a(0) =81a(1) =327a(2) =327a(3) =1386a(4) =2211a(5) =1386a(6) =6093a(7) =15254a(8) =15254a(9) =6093a(10) =27079a(11) =109205a(12) =168564a(13) =109205a(14) =27079a(15) =121590a(16) =786609a(17) =1949236a(18) =1949236a(19) =786609a(20) =121590a(21) =549173a(22) =5747502a(23) =22695802a(24) =36874967a(25) =22695802a(26) =5747502a(27) =549173a(28) =2495215a(29) =42215123

External references