Number of correlation classes for pairs of different words in an alphabet of size 4.
A152959
Number of correlation classes for pairs of different words in an alphabet of size 4.
Terms
- a(0) =1a(1) =6a(2) =20a(3) =55a(4) =141a(5) =324a(6) =657a(7) =1329a(8) =2515a(9) =4592a(10) =7897a(11) =13221
External references
- oeis: A152959