A253606 Numbers n such that digits of n are not present in n^8.

3, 4, 8, 9, 22, 33, 43, 54, 59, 73, 222, 233, 353, 712, 777, 22224

Offset: 1

Author

Chai Wah Wu, Jan 05 2015

Keywords

• nonn
• base
• more

Comments

a(17) > 10^9.

Examples

			4^8 = 65536 which does not contain the digit 4.
		

Crossrefs

Cf. A111116, A253577.

Programs

Mathematica

a253606[n_] := Block[{f},
  f[x_] := MemberQ[IntegerDigits[x^8], #] & /@ IntegerDigits[x];
Select[Range@n, DeleteDuplicates@f[#] == {False} &]]; a253606[10^5] (* Michael De Vlieger, Jan 06 2015 *)

Python

A253606_list = [n for n in range(1,10**6) if set(str(n)) & set(str(n**8)) == set()]