Number of (n+1)X(1+1) 0..3 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.
A250669
Number of (n+1)X(1+1) 0..3 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) =104a(1) =520a(2) =2512a(3) =11736a(4) =53032a(5) =233300a(6) =1005121a(7) =4260728a(8) =17835379a(9) =73930174a(10) =304111433a(11) =1243471948a(12) =5060483311a(13) =20518170938a(14) =82950532885a(15) =334582615528
External references
- oeis: A250669