27419

Appears in sequences

• a(n) = pq + pr + qr with p = prime(n), q = prime(n+1), and r = prime(n+2).at n=23A127345
• Composites in A127345.at n=12A127347
• Denominator of harmonic mean of 3 consecutive primes. Numerators are A331259.at n=23A331260
• Numbers with two or more distinct prime factors such that the number and all its prime factors fall on a single straight line when they are plotted on a square spiral.at n=45A346294