Number of (n+1)X(2+1) 0..2 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.

A235403

Number of (n+1)X(2+1) 0..2 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.

Terms

    a(0) =450a(1) =5916a(2) =87902a(3) =924132a(4) =9730723a(5) =80383489a(6) =662290407a(7) =4576924546a(8) =31580340379a(9) =190518611734

External references