64807

Appears in sequences

• Product of the members of pairs of primes (p, q) with p < q and such that, for some integer k, (p+q)/2 = 2^k and p > 2^(k-1).at n=13A072745
• Numbers k such that 2*10^k + 3*R_k + 6 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=20A102951
• Monotonic ordering of nonnegative differences 4^i-3^j, for 40>=i>=0, j>=0.at n=43A192148
• Monotonic ordering of nonnegative differences 4^i-9^j, for 40>= i>=0, j>=0.at n=24A192169