199056

Appears in sequences

• Numbers other than prime powers divisible by the sum of the squares of their prime divisors.at n=22A190882
• Numbers n such that n and n^4 are sums of two twin primes.at n=28A212430
• Numbers other than prime powers divisible by the sum and the sum of squares of their prime divisors.at n=3A268417
• G.f. A(x) satisfies A(x) = 1 + x*A(x)^3 - x^2*A(x)^5.at n=12A367027