Number of (n+1)X(3+1) 0..2 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
A250989
Number of (n+1)X(3+1) 0..2 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
Terms
- a(0) =646a(1) =4007a(2) =21955a(3) =111175a(4) =542834a(5) =2592734a(6) =12238954a(7) =57388086a(8) =268220043a(9) =1251995646a(10) =5843762848a(11) =27293152949a(12) =127596737815a(13) =597184294909
External references
- oeis: A250989