Number of (n+1) X (6+1) 0..2 arrays with nondecreasing 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.
A250896
Number of (n+1) X (6+1) 0..2 arrays with nondecreasing 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) =10875a(1) =31215a(2) =91030a(3) =265546a(4) =764315a(5) =2168405a(6) =6060594a(7) =16732140a(8) =45832201a(9) =125162059a(10) =342287192a(11) =940831202a(12) =2606118783a(13) =7287014385a(14) =20581424254a(15) =58711891192a(16) =169046356181a(17) =490755132023
External references
- oeis: A250896