215459

Properties

Appears in sequences

• a(1) = 1, a(n+1) = least prime p > a(n) such that a(n) + p is a square.at n=37A178825
• Lesser of twin primes P(k) and P(k+1) such that Sd(P(k)) + Sd(P(k+1)) = Sd(k) + Sd(k+1), where Sd(x) is the sum of digits of x.at n=26A277111
• Prime numbersat n=19246