Number of (n+1) X (6+1) 0..1 arrays with nondecreasing 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.
A250727
Number of (n+1) X (6+1) 0..1 arrays with nondecreasing 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) =579a(1) =1376a(2) =2699a(3) =4889a(4) =8514a(5) =14437a(6) =23941a(7) =38821a(8) =61554a(9) =95438a(10) =144820a(11) =215289a(12) =313964a(13) =449751a(14) =633699a(15) =879329a(16) =1203066a(17) =1624648a(18) =2167642a(19) =2859941a(20) =3734372a(21) =4829289a(22) =6189281a(23) =7865869a(24) =9918322a(25) =12414466a(26) =15431616a(27) =19057505a(28) =23391340
External references
- oeis: A250727