42589

Properties

Appears in sequences

• Fourth term of weak prime sextet: p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1).at n=15A054831
• n for which floor((4/3)^n) is prime.at n=34A070762
• Numbers n such that (10^(2n+1)+72*10^n-1)/9 is prime.at n=8A107649
• Centered triangular numbers that are prime.at n=38A125602
• a(n) = 28*n^2 + 1.at n=39A158556
• Primes of the form 4*n^3 - 3.at n=3A199369
• Primes of the form 7n^2 + 1.at n=20A201602
• a(n) is the smallest integer that makes A230762(n) the commonest number of decompositions of 2k into an unordered sum of two odd primes, where 3 <= k <= a(n).at n=28A230822
• Primes p such that A001175(p) = (p-1)/9.at n=22A308794
• Prime numbersat n=4454