Number of (n+1) X (5+1) 0..1 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.
A250794
Number of (n+1) X (5+1) 0..1 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) =252a(1) =838a(2) =2776a(3) =9258a(4) =31220a(5) =105954a(6) =361344a(7) =1236058a(8) =4237556a(9) =14549610a(10) =50012080a(11) =172050098a(12) =592248148a(13) =2039649282a(14) =7026884288a(15) =24215293674a(16) =83465955764a(17) =287740551770a(18) =992085339216
External references
- oeis: A250794