Number of (n+1)X(1+1) 0..3 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.
A250512
Number of (n+1)X(1+1) 0..3 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) =120a(1) =889a(2) =5996a(3) =39187a(4) =248942a(5) =1555689a(6) =9605300a(7) =58826247a(8) =358185874a(9) =2172028005a(10) =13132419904a(11) =79233189251a(12) =477317759278
External references
- oeis: A250512