102473

Appears in sequences

• Semiprimes which have one or more occurrences of exactly six different digits.at n=17A235694
• Array read by downward antidiagonals: A(n,k) = A(n-1,k+1) + (k+1)*Sum_{j=0..k} binomial(k, j)*A(n-1,j) with A(0,k) = 1, n >= 0, k >= 0.at n=47A370382