Number of (n+1) X (5+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.
A250766
Number of (n+1) X (5+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) =133a(1) =214a(2) =344a(3) =572a(4) =996a(5) =1812a(6) =3412a(7) =6580a(8) =12884a(9) =25460a(10) =50580a(11) =100788a(12) =201172a(13) =401908a(14) =803348a(15) =1606196a(16) =3211860a(17) =6423156a(18) =12845716a(19) =25690804a(20) =51380948a(21) =102761204a(22) =205521684a(23) =411042612a(24) =822084436a(25) =1644168052a(26) =3288335252
External references
- oeis: A250766