4704000

Appears in sequences

• Least solution to cototient(x) = n!, where cototient(x) = x-phi(x).at n=9A066278
• Triangular array read by rows: T(n,k) is the number of functions f:{1,2,...,n}->{1,2,...,n} with exactly k elements x such that |f^(-1)(x)| = 1; n>=0, 0<=k<=n.at n=40A206823
• Triangle T(n,k) giving denominator of coefficient of x^k in a polynomial p(n) defined as a determinant.at n=12A233472
• Triangle read by rows: T(n,k) (n >= 1, 4 <= k <= n+3) is the number of k-sequences of balls colored with at most n colors such that exactly four balls are the same color as some other ball in the sequence.at n=32A292999