2673216

Appears in sequences

• Smallest k such that d(phi(k)) - phi(d(k)) = -n, where d(k) = A000005(k) and phi(k) = A000010(k).at n=25A078151
• a(n) = n*(n+1)*(n+2)*(n+3)*(n+4)*(n+5)/5.at n=13A162669