cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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

Original entry on oeis.org

1442399, 8993999, 16007999, 18258527, 25090079, 51136799, 71690087, 95433359, 108722327, 119617967, 136913399, 141538607, 144264119, 146724767, 151856327, 177928919, 187169759, 198443567, 212080967, 230644967, 233386727, 249924479
Offset: 1

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Author

Rick L. Shepherd, Feb 11 2009

Keywords

Comments

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

Crossrefs

Cf. A156620, A014614.

Programs

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