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.

A253578 Primes p such that digits of p do not appear in p^10.

Original entry on oeis.org

3, 877
Offset: 1

Views

Author

Vincenzo Librandi, Jan 05 2015

Keywords

Comments

a(3) > 10^7.
Numbers n < 10^7 such that digits of n are not present in n^10: 3, 9, 18, 877, 5757.
a(3) > 10^10. - Chai Wah Wu, Jan 15 2015

Examples

			3 and 3^10 = 59049 have no digits in common, hence 3 is in the sequence.
		

Crossrefs

Cf. similar sequences listed in A253574.

Programs

  • Mathematica
    Select[Prime[Range[1000000]], Intersection[IntegerDigits[#], IntegerDigits[#^10]]=={} &]
  • Python
    from sympy import isprime
    A253578_list = [n for n in range(1,10**6) if set(str(n)) & set(str(n**10)) == set() and isprime(n)] # Chai Wah Wu, Jan 15 2015