68239

Properties

Appears in sequences

• Fifth term of weak prime sextet: p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m).at n=22A054832
• Sixth term of weak prime sextet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1).at n=21A054833
• Sixth term of weak prime septet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m).at n=2A054839
• Smallest of four consecutive primes whose average is a triangular number.at n=32A226155
• a(n) = G_n(5), where G_n(k) is the Goodstein function defined in A266201.at n=26A266204
• First of a sequence of exactly n consecutive primes whose squares have the same last digit.at n=9A366310
• Expansion of 1/(1 - x/(1 - 9*x^2)^(2/3)).at n=11A373543
• Prime numbersat n=6793