25646167

Properties

Appears in sequences

• Triangle of Gaussian binomial coefficients [ n,k ] for q = 17.at n=29A022181
• Number of sublattices of index n in generic 7-dimensional lattice.at n=16A038994
• a(n) = 1111111 in base n.at n=16A053716
• Primes of the form sigma(m^2) where m is a composite number ordered by values m.at n=16A065403
• Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=6.at n=16A068023
• Greatest prime factor of prime(n)^n - 1.at n=5A069460
• Value of n-th cyclotomic polynomial at the n-th prime.at n=6A070522
• Primes of the form n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=7A088550
• Partial sums of powers of 17 (A001026).at n=6A091045
• (17^n - 1)/(2^(5 - (n % 2))).at n=7A152437
• a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 8.at n=16A160897
• Legal generalized repunit prime numbers.at n=23A179625
• Smallest prime factor of prime(n)^n - 1 having the form k*n + 1.at n=4A191548
• Primes of the form p^6 + p^5 + p^4 + p^3 + p^2 + p + 1 when p is prime.at n=4A194257
• Minimal order of degree-n irreducible polynomials over GF(17).at n=6A218361
• Primes of the form (k^p-1)/(k-1) not having representation in the form (m^q+1)/(m+1), where k,m > 1 and p,q > 2.at n=27A225148
• Primes p such that there is prime q with sigma(q+2) = p.at n=23A247955
• Primitive prime factors of the cyclotomic polynomial sequence Phi(7,k) in the order in which they occur.at n=19A256146
• a(n) is the sum of the first n nonnegative powers of the n-th prime.at n=6A319074
• Primes q appearing in A330832: that is, if A330832(n)=p*q, where p is prime and q=(p^k-1)/(p-1) is prime, then a(n)=q.at n=34A330835