623641

Properties

Appears in sequences

• Numbers k such that k, k+1, k+2, k+3 and k+4 are respectively 1,2,3,4,5-almost primes.at n=11A113008
• Primes of the form k!6-4, where k!6 is the sextuple factorial number (A085158).at n=6A289550
• a(n)=x is the least prime with pi(x,4,3) - pi(x,4,1) = 1-n where pi(x,4,k) is the number of primes 4*j + k <= x.at n=5A349519
• Prime numbersat n=50876