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.

A260269 Primes having only {1, 4, 6} as digits.

Original entry on oeis.org

11, 41, 61, 461, 641, 661, 4111, 4441, 6661, 11161, 11411, 14411, 14461, 16111, 16141, 16411, 16661, 41141, 41161, 41411, 41611, 41641, 44111, 44641, 46141, 46411, 46441, 61141, 61441, 64661, 66161, 111611, 111641, 114161, 114641, 114661, 116141, 116411
Offset: 1

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Author

Vincenzo Librandi, Jul 23 2015

Keywords

Comments

A020452 and A020454 are subsequences.

Crossrefs

Cf. similar sequences listed in A260266.

Programs

  • Magma
    [p: p in PrimesUpTo(4*10^5) | Set(Intseq(p)) subset [1, 4, 6]];
  • Mathematica
    Select[Prime[Range[3 10^4]], Complement[IntegerDigits[#], {1, 4, 6}]=={} &]