Least k such that 2^x - k produces primes or negative values of primes for x=1..n and (possibly in absolute value) composite for x=n+1.
A198291
Least k such that 2^x - k produces primes or negative values of primes for x=1..n and (possibly in absolute value) composite for x=n+1.
Terms
- a(0) =0a(1) =33a(2) =111a(3) =285a(4) =1455a(5) =10275a(6) =21a(7) =75a(8) =45a(9) =13573477665a(10) =232317867705
External references
- oeis: A198291