Number of (3+1)X(n+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.
A250997
Number of (3+1)X(n+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) =612a(1) =4111a(2) =21955a(3) =104674a(4) =456514a(5) =1869400a(6) =7290819a(7) =27384143a(8) =99810933a(9) =355081380a(10) =1238282515a(11) =4247230905a(12) =14365389147a(13) =48012656399a(14) =158834880759a(15) =520810627308
External references
- oeis: A250997