Number of equivalence classes of 4-valued Post functions of n variables under action of semi-direct product of symmetric group S_n and complementing group C(n,4).
A056666
Number of equivalence classes of 4-valued Post functions of n variables under action of semi-direct product of symmetric group S_n and complementing group C(n,4).
Terms
- a(0) =70a(1) =134355076
External references
- oeis: A056666