152381

Properties

Appears in sequences

• Triangle of (Gaussian) q-binomial coefficients for q=-20.at n=16A015145
• Triangle of (Gaussian) q-binomial coefficients for q=-20.at n=19A015145
• a(n) = n^4 - n^3 + n^2 - n + 1.at n=20A060884
• Smallest prime of the form (n^k+1)/(n+1), or 0 if no such prime exists.at n=18A084741
• Primes p with A047967(p) also prime.at n=30A236418
• Greatest prime factor of n^5 + 1.at n=19A240548
• Primitive prime factors of the cyclotomic polynomial sequence Phi(10,k) in the order in which they occur.at n=19A248874
• Primes of the form n^4 - n^3 + n^2 - n + 1.at n=7A259257
• a(n) = 1 - sigma(n) + sigma(n)^2 - sigma(n)^3 + sigma(n)^4.at n=18A259410
• Primes of the form 1 - sigma(n) + sigma(n)^2 - sigma(n)^3 + sigma(n)^4.at n=3A259412
• G.f. A(x) satisfies: A(x) = 1/(1 - x*A(x) - x^2*A(x)^2/(1 - x*A(x) - 2*x^2*A(x)^2/(1 - x*A(x) - 3*x^2*A(x)^2/(1 - ...)))), a continued fraction.at n=9A301770
• Prime numbers such that the product of their digits equals twice the number of their digits times the sum of their digits.at n=24A343701
• Primes of the form (c^k+1)/(c+1) not having a representation in the form (b^q-1)/(b-1), where b, c > 1 and k, q > 2.at n=12A343774
• Prime numbersat n=14054