Number of binary pattern classes in the (2,n)-rectangular grid; two patterns are in same class if one of them can be obtained by reflection or rotation of the other one.
A132390
Number of binary pattern classes in the (2,n)-rectangular grid; two patterns are in same class if one of them can be obtained by reflection or rotation of the other one.
Terms
- a(0) =3a(1) =6a(2) =24a(3) =76a(4) =288a(5) =1072a(6) =4224a(7) =16576a(8) =66048a(9) =262912a(10) =1050624a(11) =4197376a(12) =16785408a(13) =67121152a(14) =268468224a(15) =1073790976a(16) =4295098368a(17) =17180065792a(18) =68720001024a(19) =274878693376
External references
- oeis: A132390