Number of subgroups of order n of the symmetric group Sym(n) on n symbols.

A284210

Number of subgroups of order n of the symmetric group Sym(n) on n symbols.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =7a(4) =6a(5) =280a(6) =120a(7) =25335a(8) =11200a(9) =276696a(10) =362880a(11) =374838255a(12) =39916800a(13) =2414617920a(14) =11721790080

External references