A204231 Position of primes in A127345.

1, 2, 3, 4, 7, 10, 12, 13, 14, 19, 23, 27, 33, 37, 41, 42, 44, 49, 59, 61, 69, 72, 76, 83, 88, 89, 111, 121, 126, 127, 134, 137, 143, 144, 146, 149, 159, 163, 170, 177, 178, 186, 189, 195, 197, 198, 204, 208, 214, 217, 220, 224, 228, 233, 234, 236, 243, 247, 248, 249, 276, 278, 288, 294, 295, 335, 338, 353, 354, 380, 382, 384, 395, 401, 402, 408, 411, 427

Offset: 1

Author

Zak Seidov, Jan 13 2012

Keywords

• nonn

Links

• Zak Seidov, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A127345, A127346.

Programs

PARI

p=2; q=3; n=0; forprime(r=5, 1e3, n++; if(isprime(p*q+p*r+q*r), print1(n", ")); p=q; q=r) \\ Charles R Greathouse IV, Jan 13 2012

Formula

A127346(n) = A127345(a(n)).