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.
%I A263315 #47 Mar 25 2017 20:32:08 %S A263315 23,25,27,29,32,34,35,37,38,43,45,46,47,49,52,53,54,56,57,58,59,64,65, %T A263315 67,68,69,72,73,74,75,76,78,79,83,85,86,87,89,92,94,95,96,97,98,235, %U A263315 237,253,257,259,273,275,279,295,297,325,327,345,347,352,354,357 %N A263315 Numbers whose decimal representation contains at least two digits such that no digit is divisible by any other digit. %C A263315 This sequence is finite. Digits 0 or 1 do not occur. %C A263315 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 %H A263315 Alois P. Heinz, <a href="/A263315/b263315.txt">Table of n, a(n) for n = 1..752</a> %e A263315 From _Michael De Vlieger_, Mar 25 2017: (Start) %e A263315 29 is in the sequence because the digits 2 and 9 are coprime and not equal to 1. %e A263315 325 is in the sequence because digits 3, 2, and 5 are mutually coprime and none are equal to 1. (End) %t A263315 Select[Range@ 360, CoprimeQ @@ # && ! MemberQ[#, 1] &@ IntegerDigits@ # &] (* _Michael De Vlieger_, Mar 25 2017 *) %Y A263315 Cf. A263314. %K A263315 nonn,base,fini,full %O A263315 1,1 %A A263315 _Giovanni Teofilatto_, Oct 14 2015