1/4 the number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.
A209723
1/4 the number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock having distinct clockwise edge differences.
Terms
- a(0) =6a(1) =7a(2) =8a(3) =10a(4) =12a(5) =16a(6) =20a(7) =28a(8) =36a(9) =52a(10) =68a(11) =100a(12) =132a(13) =196a(14) =260a(15) =388a(16) =516a(17) =772a(18) =1028a(19) =1540a(20) =2052a(21) =3076a(22) =4100a(23) =6148a(24) =8196a(25) =12292a(26) =16388a(27) =24580a(28) =32772a(29) =49156
External references
- oeis: A209723