9699731

Properties

Appears in sequences

• Primes P such that P and P+2 are twin primes and P = p(n)# + p(m) with p(n) < p(m) < p(n+1)^2, or 0 if no such prime P for n, p(n)# = n-th primorial, p(m)= m-th prime ( p(m), p(m+1) twin primes ).at n=21A088903
• a(n) is the largest prime p such that p - a(n-1) is a primorial, starting with a(1) = 2.at n=5A380027
• Prime numbersat n=646032