Number of (5+1) X (n+1) 0..1 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.
A250773
Number of (5+1) X (n+1) 0..1 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) =144a(1) =258a(2) =418a(3) =648a(4) =996a(5) =1558a(6) =2526a(7) =4284a(8) =7600a(9) =14010a(10) =26586a(11) =51472a(12) =100956a(13) =199614a(14) =396598a(15) =790212a(16) =1577064a(17) =3150370a(18) =6296562a(19) =12588504a(20) =25171924a(21) =50338278a(22) =100670478a(23) =201334348a(24) =402661536a(25) =805315338a(26) =1610622346a(27) =3221235744
External references
- oeis: A250773