A098095 Primes of the form p^2 + pq + q.

13, 17, 19, 29, 37, 43, 53, 61, 67, 73, 89, 97, 101, 103, 127, 137, 139, 157, 163, 173, 181, 197, 199, 211, 223, 233, 239, 241, 271, 277, 281, 283, 293, 307, 313, 331, 349, 379, 397, 401, 421, 457, 461, 463, 487, 491, 499, 521, 523, 541, 547, 557, 577, 601

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Prog

(PARI) {z=605; v=[]; p=2; while(p^2+p*2+2<z, q=2; while((n=p^2+p*q+q)<z, if(isprime(n), v=concat(v, n)); q=nextprime(q+1)); p=nextprime(p+1)); v=vecsort(v); m=0; for(j=1, length(v), if(m<v[j], m=v[j]; print1(m, ", ")))} \\ Klaus Brockhaus, Sep 15 2004

Crossrefs

Sequence in context: A319504 A339912 A099184 * A249953 A180530 A059500

Adjacent sequences: A098092 A098093 A098094 * A098096 A098097 A098098

Keyword

nonn,easy

Author

Giovanni Teofilatto, Sep 14 2004

Extensions

Corrected and extended by Klaus Brockhaus, Sep 15 2004

Status

approved