A156621 5-almost primes of the form p^2 - 2, where p is prime.

1442399, 8993999, 16007999, 18258527, 25090079, 51136799, 71690087, 95433359, 108722327, 119617967, 136913399, 141538607, 144264119, 146724767, 151856327, 177928919, 187169759, 198443567, 212080967, 230644967, 233386727, 249924479

Offset

1,1

Comments

Corresponding primes are A156620.

This sequence is infinite: See A156620 for comments and references.

Links

Table of n, a(n) for n=1..22.

Prog

(PARI) forprime(p=2, prime(2500), ap=p^2-2; if(bigomega(ap)==5, print1(ap, ", ")))

Crossrefs

Cf. A156620, A014614.

Sequence in context: A015361 A259306 A210629 * A108841 A124490 A124491

Adjacent sequences: A156618 A156619 A156620 * A156622 A156623 A156624

Keyword

nonn

Author

Rick L. Shepherd, Feb 11 2009

Status

approved