Number of 3X(n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
A205738
Number of 3X(n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
Terms
- a(0) =360a(1) =978a(2) =3888a(3) =17532a(4) =80916a(5) =376314a(6) =1756446a(7) =8212662a(8) =38432652a(9) =179925948a(10) =842504430a(11) =3945403368a(12) =18476947170a(13) =86532335682a(14) =405257580870
External references
- oeis: A205738