50839

Properties

Appears in sequences

• Numbers k such that 2^k - F(k) is prime, where F(n) is the n-th Fibonacci number.at n=21A074716
• There appear to be at least n primes in the range (x-2*sqrt(x), x] for all x >= a(n).at n=34A189027
• Primes from merging of 5 successive digits in decimal expansion of sqrt(2).at n=32A198165
• Odd numbers not of the form p + 2^m with p prime and m >= 0 for which the smallest k in A067760 such that n + 2^k is prime increases.at n=9A276495
• Prime numbersat n=5207