18773

Properties

Appears in sequences

• Primes of form k^2 + 4.at n=26A005473
• Crystal ball sequence for hexagonal close-packing.at n=17A007202
• Primes that remain prime through 3 iterations of function f(x) = 8x + 9.at n=11A023295
• Smallest prime == 1 mod (n^2).at n=37A035091
• Denominators of continued fraction convergents to sqrt(487).at n=9A041929
• Numbers whose base-2 representation has exactly 13 runs.at n=15A043580
• Primes of the form p^2 + 4, where p is prime.at n=11A045637
• a(n) is a cube mod a(i) for all i < n.at n=42A054762
• Smallest prime larger than square of n-th prime.at n=32A062772
• Duplicate of A045637.at n=11A094481
• Primes of form 2^j + 137^j.at n=2A094482
• Primes of the form n^2 + 4n + 8.at n=25A098062
• Diagonal sums of number array A107249.at n=17A107250
• Numbers k such that (2*k)!/(2*(k!)^2)+1 is prime.at n=45A112863
• Prime sums of 6 positive 5th powers.at n=34A123035
• Primes of the form 256 k + 85.at n=18A127593
• Primes congruent to 11 mod 59.at n=35A142738
• Primes congruent to 46 mod 61.at n=36A142844
• a(n) = 52*n^2 + 1.at n=19A158644
• Prime p of the form a^b + c^d = p, where a, b, c, d are also primes.at n=27A164074