Number of (6+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.
A250788
Number of (6+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) =288a(1) =796a(2) =2010a(3) =5028a(4) =12036a(5) =27986a(6) =63184a(7) =139436a(8) =301786a(9) =643164a(10) =1353544a(11) =2820050a(12) =5828064a(13) =11966884a(14) =24444622a(15) =49725780a(16) =100817008a(17) =203857762a(18) =411330612a(19) =828530748a(20) =1666582118a(21) =3348596476a(22) =6722194620a(23) =13484879538
External references
- oeis: A250788