205800

Appears in sequences

• Numbers k such that previous_prime(k)=k-sd and next_prime(k)=k+sd where sd is sum of the distinct prime factors of k.at n=15A125841
• a(n) = Sum_{k=0..n} (n+k+3)!/((n-k)!*k!*2^k).at n=4A144514
• Numbers with prime factorization pq^2r^3s^3.at n=28A190320
• The least totient number k with exactly n solutions to the equation phi(x) = k, where all the solutions are nontotient numbers (A007617).at n=32A378510