Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 n X 2 array.

A217451

Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 n X 2 array.

Terms

    a(0) =3a(1) =15a(2) =69a(3) =253a(4) =1049a(5) =4205a(6) =16887a(7) =68015a(8) =273471a(9) =1100135a(10) =4425449a(11) =17801365a(12) =71607677a(13) =288046417a(14) =1158686263a(15) =4660895899a(16) =18748771139a(17) =75418217399a(18) =303374944277

External references