90217

Properties

Appears in sequences

• a(n) = 1 + 2*n + 3*n^2 + 4*n^3.at n=28A056578
• Numbers k such that 3^k - 2^k is prime.at n=19A057468
• Primes with 22 as smallest positive primitive root.at n=22A061334
• Primes of the form 1 + 2*k + 3*k^2 + 4*k^3.at n=6A123059
• Exactly one of 3^n +- 2^n is prime.at n=21A174326
• Primes that are reached by an ever increasing aliquot sequence.at n=30A234842
• Number of integers in n-th generation of tree T(-3/2) defined in Comments.at n=30A274154
• Numbers k such that 3^k + (-2)^k is prime.at n=21A283653
• Prime numbersat n=8738