321311

Properties

Appears in sequences

• n written in fractional base 4/3.at n=29A024631
• Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,4,6).at n=31A078949
• Partial sums of A008531, or crystal ball sequence for {A_4}* lattice.at n=22A222408
• a(n) is the least number k such that the number whose base-b representation is the same as the decimal representation of k is prime for the first n possible bases b, but not for the next possible base.at n=7A373693
• Primes p such that p + 2, p + 8, p + 12, p + 18 and p + 20 are also primes.at n=11A383393
• Prime numbersat n=27711