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.

A179336 Primes containing at least one prime digit in base 10.

Original entry on oeis.org

2, 3, 5, 7, 13, 17, 23, 29, 31, 37, 43, 47, 53, 59, 67, 71, 73, 79, 83, 97, 103, 107, 113, 127, 131, 137, 139, 151, 157, 163, 167, 173, 179, 193, 197, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337
Offset: 1

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Author

Reinhard Zumkeller, Jul 11 2010

Keywords

Comments

a(n) = A080608(n) for n<28; A080608 is a subsequence;
A179335(n) < 10 iff prime(n) is in this sequence;
A109066(n) > 0 iff prime(n) is in this sequence. [Corrected by M. F. Hasler, Aug 27 2012]

Crossrefs

Intersection of A118950 and A000040; relative complement A000040 \ A034844.

Programs

  • Haskell
    a179336 n = a179336_list !! (n-1)
    a179336_list = filter (any (`elem` "2357") . show ) a000040_list
    -- Reinhard Zumkeller, Jul 19 2011

Formula

a(n) ~ n log n. - Charles R Greathouse IV, Nov 01 2022