1/4 the number of (n+1) X 6 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.
A209724
1/4 the number of (n+1) X 6 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.
Terms
- a(0) =8a(1) =9a(2) =10a(3) =12a(4) =14a(5) =18a(6) =22a(7) =30a(8) =38a(9) =54a(10) =70a(11) =102a(12) =134a(13) =198a(14) =262a(15) =390a(16) =518a(17) =774a(18) =1030a(19) =1542a(20) =2054a(21) =3078a(22) =4102a(23) =6150a(24) =8198a(25) =12294a(26) =16390a(27) =24582a(28) =32774a(29) =49158
External references
- oeis: A209724