75209

Properties

Appears in sequences

• Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2, 6,6]; short d-string notation of pattern = [266].at n=20A078849
• Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,6,4).at n=6A078950
• a(n) = 1 + 2 * least i such that A103507(i)=n+1, 0 if no such i exists.at n=41A103508
• Primes of the form 1+2*n+3*n^2.at n=21A122430
• Difference between A002110(n) and the largest semiprime b*c < A002110(n) where b is prime(n+1).at n=37A283425
• Primes p such that p+2, (p^2-1)/2+p and (p^2+3)/2+3*p are also prime.at n=22A352948
• Prime numbersat n=7410