Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 3Xn array.

A218524

Number of 3Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 3Xn array.

Terms

    a(0) =64a(1) =236a(2) =4634a(3) =46140a(4) =639228a(5) =7687526a(6) =100029148a(7) =1260284690a(8) =16119079970a(9) =204833380744

External references