246241

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 66.at n=9A031654
• Class 8+ primes.at n=6A081636
• Primes whose logarithms are known to possess binary BBP formulas.at n=41A104885
• Number of ways to place zero or more nonadjacent 1,0 2,0 2,1 2,2 3,0 polyhexes in any orientation on a planar nXnXn triangular grid.at n=7A155230
• Generalized Gaussian-Mersenne primes (see below).at n=15A207040
• Primes with nonzero digits such that sum of cubes of digits equal to square of sums.at n=21A225567
• Largest prime factor of 2^(2*n+1)-2^(n+1)+1.at n=12A229767
• Lexicographically earliest sequence of prime numbers whose partial products, starting from the second, are all Fermat pseudoprimes to base 2 (A001567).at n=14A374028
• Lexicographically earliest strictly increasing sequence of prime numbers whose partial products, starting from the second, are all Fermat pseudoprimes to base 2 (A001567).at n=10A374029
• Primes p such that there exists a cyclic permutation of the nonzero residues modulo p such that v^2 - 4*u*w == 0 (mod p) for any three consecutive residues u,v,w.at n=17A376008
• Smallest primitive prime factor of 8^n-1.at n=35A379641
• Prime numbersat n=21732