292561

Properties

Appears in sequences

• Primes of form (p^x - 1)/(p^y - 1), p prime.at n=30A003424
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 23.at n=16A022187
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 23.at n=19A022187
• Prime numbers that are the sum of the divisors of some n.at n=23A023195
• Primes that remain prime through 4 iterations of function f(x) = 5x + 2.at n=23A023313
• Primes that remain prime through 5 iterations of function f(x) = 5x + 2.at n=4A023341
• Number of sublattices of index n in generic 5-dimensional lattice.at n=22A038992
• a(n) = n^4 + n^3 + n^2 + n + 1.at n=23A053699
• Terms of A000203 that are prime.at n=25A062700
• Primes of the form sigma(m^2) where m is a composite number ordered by values m.at n=10A065403
• 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=4.at n=22A068021
• Smallest prime of the form (n^k-1)/(n-1), or 0 if no such prime exists.at n=21A084738
• Primes of the form k^4 + k^3 + k^2 + k + 1.at n=7A088548
• a(n) = 1 + prime(n) + prime(n)^2 + prime(n)^3 + prime(n)^4.at n=8A131992
• a(n) = Sum_{d|n} Möbius(n/d)*d^5/phi(n).at n=22A160893
• Legal generalized repunit prime numbers.at n=17A179625
• Primes of the form p^4 + p^3 + p^2 + p + 1, where p is prime.at n=4A190527
• a(n) = sigma(n^4).at n=22A202994
• Minimal order of degree-n irreducible polynomials over GF(23).at n=4A218363
• a(n) = (23^n - 1)/22.at n=5A218726