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A156621 5-almost primes of the form p^2 - 2, where p is prime. 1
1442399, 8993999, 16007999, 18258527, 25090079, 51136799, 71690087, 95433359, 108722327, 119617967, 136913399, 141538607, 144264119, 146724767, 151856327, 177928919, 187169759, 198443567, 212080967, 230644967, 233386727, 249924479 (list; graph; refs; listen; history; text; internal format)
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

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Last modified January 21 10:25 EST 2022. Contains 350477 sequences. (Running on oeis4.)