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.
A250654
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) =64a(1) =134a(2) =274a(3) =554a(4) =1114a(5) =2234a(6) =4474a(7) =8954a(8) =17914a(9) =35834a(10) =71674a(11) =143354a(12) =286714a(13) =573434a(14) =1146874a(15) =2293754a(16) =4587514a(17) =9175034a(18) =18350074a(19) =36700154a(20) =73400314a(21) =146800634a(22) =293601274a(23) =587202554a(24) =1174405114a(25) =2348810234a(26) =4697620474
External references
- oeis: A250654