395850

Appears in sequences

• Numbers k such that sopfr(k) = ud(k), where sopfr = A001414 and ud = A034444.at n=6A064029
• Convolution of Jacobsthal(n) and 3^n.at n=12A094705
• a(n) is smallest number with divisors which are congruent to 1, 2, ..., n-1 mod n.at n=41A140539
• Numbers n such that n = concatenate(a, b) and sigma(a) + sigma(b) = phi(n).at n=20A249065
• a(n) is the least positive number whose divisors have all possible residues mod n.at n=41A280171
• Integers x such that there exist two integers 0<x<=y<=z such that psi(x) = psi(y) = psi(z) = x + y + z.at n=9A385852