71387

Properties

Appears in sequences

• Primes that remain prime through 4 iterations of function f(x) = 4x + 9.at n=16A023312
• G.f. A(x) satisfies: -x = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n-1)/2) * A(x)^n.at n=11A354645
• Integers k such that 28*phi(29*197^3*k) is not a totient number where phi is the totient function.at n=19A361396
• Prime numbersat n=7069