364383

Appears in sequences

• Odd numbers n divisible by 3 such that for all k >= 1 the numbers n*2^k + 1 and n*2^(k+1) + 1 do not form a pair of primes.at n=29A243857
• Odd numbers k such that the ring of integers of Q(5^(1/k)) is not Z[5^(1/k)].at n=13A342391