Number of (n+1) X 2 0..1 arrays with the number of clockwise edge increases in every 2 X 2 subblock the same.
A205248
Number of (n+1) X 2 0..1 arrays with the number of clockwise edge increases in every 2 X 2 subblock the same.
Terms
- a(0) =16a(1) =40a(2) =112a(3) =328a(4) =976a(5) =2920a(6) =8752a(7) =26248a(8) =78736a(9) =236200a(10) =708592a(11) =2125768a(12) =6377296a(13) =19131880a(14) =57395632a(15) =172186888a(16) =516560656a(17) =1549681960a(18) =4649045872a(19) =13947137608a(20) =41841412816a(21) =125524238440a(22) =376572715312
External references
- oeis: A205248