51217

Properties

Appears in sequences

• Smallest nontrivial extension of n-th cube which is a prime.at n=7A030692
• Starting positions of strings of four 0's in the decimal expansion of Pi.at n=5A083598
• Primes obtained from other primes by prefixing a 5.at n=43A165555
• Primes of the form p^2 + q^2 - 1 where p and q are consecutive primes.at n=12A227340
• Centered 11-gonal (or hendecagonal) primes.at n=15A262344
• a(n) = 3*a(n-1) - 3*a(n-2) + a(n-3) + a(n-4) with a(1) = 1, a(2) = 2, a(3) = 4, and a(4) = 7.at n=18A385106
• Prime numbersat n=5241