241321

Properties

Appears in sequences

• Primes p such that the differences between the 5 consecutive primes starting with p are (6,6,4,6).at n=18A078967
• Numerators of the difference between the squarefree totient analogs of the harmonic numbers and the harmonic numbers: F_n-H_n.at n=17A138320
• a(n) is the least prime q such that q*(n+1)-n is the square of a prime.at n=65A350518
• G.f. A(x) satisfies A(x) = 1 + x*A(x)^2 / (1 - x*A(x)^5).at n=8A364740
• Prime numbersat n=21328