Number of (n+1)X(2+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.
A250462
Number of (n+1)X(2+1) 0..1 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.
Terms
- a(0) =31a(1) =134a(2) =557a(3) =2322a(4) =9651a(5) =40124a(6) =166765a(7) =693150a(8) =2880943a(9) =11974176a(10) =49768529a(11) =206854274a(12) =859753523a(13) =3573415396a(14) =14852276117a(15) =61730889542a(16) =256573649655
External references
- oeis: A250462