78809

Properties

Appears in sequences

• Fourth term of balanced prime quartets: p(m-2)-p(m-3) = p(m-1)-p(m-2) = p(m)-p(m-1).at n=28A054803
• Triangle T(n,k) of number of unilaterally connected digraphs on n unlabeled nodes with k arcs, k=0..n*(n-1).at n=64A057270
• Triangle T(n,k) of number of digraphs with a source and a sink on n unlabeled nodes and k arcs, k=0..n*(n-1).at n=64A057278
• Primes p such that 8p +1 and (p-1)/8 are primes.at n=25A085958
• Primes of the form (p^2 + 9)/2 where p is prime.at n=21A347530
• Prime numbersat n=7731