OFFSET
1,1
COMMENTS
This sequence is finite. Digits 0 or 1 do not occur.
Digits must be mutually coprime and thus none can be repeated. The number 1 is coprime to all numbers thus it is left out of consideration. - Michael De Vlieger, Mar 25 2017
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..752
EXAMPLE
From Michael De Vlieger, Mar 25 2017: (Start)
29 is in the sequence because the digits 2 and 9 are coprime and not equal to 1.
325 is in the sequence because digits 3, 2, and 5 are mutually coprime and none are equal to 1. (End)
MATHEMATICA
Select[Range@ 360, CoprimeQ @@ # && ! MemberQ[#, 1] &@ IntegerDigits@ # &] (* Michael De Vlieger, Mar 25 2017 *)
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
Giovanni Teofilatto, Oct 14 2015
STATUS
approved