26891

Properties

Appears in sequences

• Powers of fifth root of 17 rounded down.at n=18A018162
• Primes of form k^2 - 5.at n=30A028877
• a(n) = prime(n)*prime(n+1) - prime(n) - prime(n+1).at n=37A037165
• Primes of the form p*q - p - q, where p and q are two successive primes.at n=11A096345
• Odd primes p such that the number of primes less than p that are congruent to 1 (mod 4) is equal to the number of primes less than p that are congruent to 3 (mod 4).at n=8A096447
• Fixed points for prime number permutation A108546.at n=15A108547
• First primes of arithmetic progressions of 5 primes each with the common difference 30.at n=40A227281
• Discriminants of imaginary quadratic fields with class number 41 (negated).at n=31A351679
• Primes that are no longer prime if in their binary representation any single bit is flipped but stay prime if a 1 bit is prepended.at n=40A385245
• Primes that are (product minus sum) of a sequence of consecutive primes.at n=14A390933
• Prime numbersat n=2950