

A263315


Numbers whose decimal representation contains at least two digits such that no digit is divisible by any other digit.


1



23, 25, 27, 29, 32, 34, 35, 37, 38, 43, 45, 46, 47, 49, 52, 53, 54, 56, 57, 58, 59, 64, 65, 67, 68, 69, 72, 73, 74, 75, 76, 78, 79, 83, 85, 86, 87, 89, 92, 94, 95, 96, 97, 98, 235, 237, 253, 257, 259, 273, 275, 279, 295, 297, 325, 327, 345, 347, 352, 354, 357
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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

Cf. A263314.
Sequence in context: A042102 A156964 A147624 * A240913 A095251 A242942
Adjacent sequences: A263312 A263313 A263314 * A263316 A263317 A263318


KEYWORD

nonn,base,fini,full


AUTHOR

Giovanni Teofilatto, Oct 14 2015


STATUS

approved



