16546530

Appears in sequences

• Triangle read by rows in which row n contains first n numbers with exactly n distinct prime factors.at n=33A048692
• Products of 8 distinct primes (squarefree 8-almost primes).at n=5A123322
• Irregular triangle read by rows: T(m, k) is the list of squarefree numbers A002110(m) < t < 2*A002110(m) such that A001221(t) = m.at n=26A288813
• a(n) is the smallest number k such that psi(k) = n*phi(k) where psi(k) is Dedekind psi function (A001615) and phi(k) is Euler totient function (A000010), or 0 if no such k exists.at n=19A291051
• Numbers k such that omega(k) = 8.at n=5A348072