117307

Properties

Appears in sequences

• Cyclotomic polynomials at x=7.at n=18A019325
• Cyclotomic polynomials at x = -7.at n=9A020506
• Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 2.at n=32A050664
• a(n) = n^6 - n^3 + 1.at n=7A060891
• Zsigmondy numbers for a = 7, b = 1: Zs(n, 7, 1) is the greatest divisor of 7^n - 1^n (A024075) that is relatively prime to 7^m - 1^m for all positive integers m < n.at n=17A064083
• Primes p such that p-1 divides 2^p-2.at n=30A069051
• a(n) = largest prime factor of 7^n-1.at n=17A074249
• a(n) = sigma_6(n^2)/sigma_3(n^2).at n=6A084220
• Primes of the form k^6 - k^3 + 1.at n=1A175170
• Largest prime factor of 7^n + 1.at n=9A227575
• Greatest prime factor of n^9+1.at n=6A240552
• Prime numbers of the form k*(k+1) + (k*(k+1))^2 + 1.at n=7A255314
• Primes p such that q = p^2 - 2, r = q^2 - 2 and s = r^2 - 2 are also prime.at n=14A257552
• Primes of the form Phi(k, -7), where Phi is the cyclotomic polynomial.at n=1A291993
• Primes of the form Phi(k, 7), where Phi is the cyclotomic polynomial.at n=3A292011
• Primes of the form 9*k^2 + 3*k + 1.at n=34A303740
• Expansion of e.g.f. 1/(1 + exp(2*x) - exp(3*x)).at n=6A355409
• Smallest primitive prime factor of 7^n-1.at n=17A379640
• Triangle read by rows: T(n,k) = number of connected cubic graphs on 2n vertices with crossing number k for n >= 2, k >= 0.at n=30A390643
• Prime numbersat n=11071