a(n) = n! times probability that an ordered pair of elements of S_n chosen at random (with replacement) generate S_n.
A040175
a(n) = n! times probability that an ordered pair of elements of S_n chosen at random (with replacement) generate S_n.
Terms
- a(0) =3a(1) =9a(2) =57a(3) =318a(4) =3090a(5) =24666a(6) =234879a(7) =2381481a(8) =26777922a(9) =324421053a(10) =4265966685
External references
- oeis: A040175