Number of conjugacy classes of subgroups of index 5 in free group of rank n.
A057011
Number of conjugacy classes of subgroups of index 5 in free group of rank n.
Terms
- a(0) =1a(1) =97a(2) =13753a(3) =1712845a(4) =207009649a(5) =24875000437
External references
- oeis: A057011