A126609 Odd primes pq+2 arising in A126608.

11, 17, 23, 79, 41, 53, 59, 71, 89, 157, 113, 2503, 131, 331, 373, 179, 307, 337, 499, 367, 239, 251, 269, 293, 709, 311, 751, 547, 1471, 383, 919, 1783, 419, 449, 757, 787, 491, 503, 521, 7699, 907, 3631, 967, 593, 599, 6121, 1117, 683, 2521, 701, 719, 4099

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Mathematica

f[n_] := Block[{p = Prime[n + 1], k = 1, r}, While[r = Prime[k + 1]*p + 2; ! PrimeQ[r], k++ ]; r]; Table[f[n], {n, 52}] (* Ray Chandler, Feb 07 2007 *)

Crossrefs

Cf. A126608.

Sequence in context: A098412 A261918 A136342 * A359443 A079367 A120139

Adjacent sequences: A126606 A126607 A126608 * A126610 A126611 A126612

Keyword

nonn,easy

Author

N. J. A. Sloane, Feb 06 2007

Extensions

Extended by Ray Chandler, Feb 07 2007

Status

approved