83443

Properties

Appears in sequences

• a(n) = floor( tan(m*Pi/2) ), where m = 1 - 2^(-n).at n=16A024810
• Third term of balanced prime quartets: p(m-1)-p(m-2) = p(m)-p(m-1) = p(m+1)-p(m).at n=31A054802
• a(n) = if Floor[(2*Pi/E)*m^2] is prime then Floor[(2*Pi/E)*m^2].at n=18A090434
• Primes having only {3, 4, 8} as digits.at n=24A199348
• a(1) = 3; a(2) = 5; a(n+1) = a(n) + b(n), where b(n) = max {a(n-1)+-1, a(n-2)+-1, a(n-3)+-1, ..., a(1)+-1} such that a(n) + b(n) is a prime.at n=35A352952
• Prime numbersat n=8147