1041421

Properties

Appears in sequences

• Primes of the form p^2 - p + 1 where p is prime.at n=21A074268
• Primes of the form p^e - p^(e-1) + p^(e-2) - ... + (-1)^e, where p is prime.at n=33A127727
• Constant term of the reduction by x^2 -> x+1 of the polynomial p(n,x) defined below in Comments.at n=17A192426
• Primes of the form (p! + q!)/ p! where p= prime(k) and q= prime(k+1), in order of increasing k.at n=12A235392
• Prime numbersat n=81512