84239

Properties

Appears in sequences

• Smallest m such that A051145(m) = 2^n.at n=26A051147
• Numbers k such that 53^k - 52^k is a prime.at n=9A062619
• Numbers k such that 6*R_k + 1 is a prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=31A096507
• Positions at which powers of 2 occur in A051145.at n=36A244747
• Prime numbersat n=8213