1/4 the number of (n+1) X 7 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.
A209725
1/4 the number of (n+1) X 7 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.
Terms
- a(0) =12a(1) =13a(2) =14a(3) =16a(4) =18a(5) =22a(6) =26a(7) =34a(8) =42a(9) =58a(10) =74a(11) =106a(12) =138a(13) =202a(14) =266a(15) =394a(16) =522a(17) =778a(18) =1034a(19) =1546a(20) =2058a(21) =3082a(22) =4106a(23) =6154a(24) =8202a(25) =12298a(26) =16394a(27) =24586a(28) =32778a(29) =49162
External references
- oeis: A209725