127997

Properties

Appears in sequences

• a(n) = [ (3rd elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.at n=22A024532
• Primes of the form 5n^2 - 3.at n=16A201785
• Primes which are the concatenation of two primes in exactly three ways.at n=19A238499
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 161", based on the 5-celled von Neumann neighborhood.at n=32A286165
• Prime partial sums of the primes == 1 (mod 6).at n=18A354572
• Prime numbersat n=11987