
Curios:
Curios Search:
Participate: 
D. Shanks estimated in 1961 that the number of
primes of the form n^{4} + 1 with
n less than or equal to N is
approximately 0.66974 li(N)
where li(N) is the logarithmic integral. [Post]
Prime Curios! © 20002018 (all rights
reserved)
privacy statement
