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Duplicate of A063784.
1

%I #16 Aug 16 2024 21:19:55

%S 73,757,1772893,48551233240513,378890487846991,3156404483062657,

%T 17390284913300671,280343912759041771,319913861581383373,

%U 487014306953858713,7824668707707203971,8443914727229480773,32564717507686012813,48095468363380957093,54811417636756749151

%N Duplicate of A063784.

%C Previous name: Primes of the form q = p^6 + p^3 + 1 = sigma_3(p^2), where p is prime.

%H Harry J. Smith, <a href="/A066101/b066101.txt">Table of n, a(n) for n = 1..200</a>

%e 73 = 64 + 8 + 1, 757 = 729 + 27 + 1, etc.

%o (PARI) { n=0; for (m=1, 10^9, p=prime(m); q=p^6 + p^3 + 1; if (isprime(q), write("b066101.txt", n++, " ", q); if (n==200, return)) ) } \\ _Harry J. Smith_, Nov 13 2009

%Y Cf. A066100, A001158, A000040, A063783.

%K dead

%O 1,1

%A _Labos Elemer_, Dec 04 2001