135647

Properties

Appears in sequences

• Numbers k such that 6^k - 5^k is prime.at n=13A062572
• Square array A(row>=1, col>=1) by antidiagonals: A(r,c) contains the c:th prime p for which A037888(p)=(r-1).at n=53A095749
• Primes p which are floor of Root-Mean-Cube (RMC) of prime(n) and prime(n+1).at n=34A240339
• Primes of the form k!2+512, where k!2 is the double factorial number (A006852).at n=1A288412
• a(n) = prime that is eventually reached when x -> sigma(x)-1 is repeatedly applied to 2^n-1, or -1 if no prime is ever reached.at n=14A291776
• Prime numbersat n=12638