Number of (n+1)X(4+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.

A235958

Number of (n+1)X(4+1) 0..1 arrays with the difference of the upper and lower median value of each 2X2 subblock in lexicographically nondecreasing order columnwise and nonincreasing rowwise.

Terms

    a(0) =398a(1) =3574a(2) =27296a(3) =195428a(4) =1340034a(5) =8974124a(6) =59037352a(7) =383935642a(8) =2474858156a(9) =15855538026a(10) =101109317650a(11) =642624413888

External references