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 A316793 #8 Jul 15 2018 13:25:09 %S A316793 1,2,3,5,7,11,12,13,17,18,19,20,23,24,28,29,31,37,40,41,43,44,45,47, %T A316793 48,50,52,53,54,56,59,61,63,67,68,71,72,73,75,76,79,80,83,88,89,92,96, %U A316793 97,98,99,101,103,104,107,108,109,112,113,116,117,124,127,131 %N A316793 Numbers whose prime multiplicities are distinct and relatively prime. %C A316793 A subsequence of A007916. %e A316793 60 = 2^2 * 3^1 * 5^1 has prime multiplicities (2,1,1), which are relatively prime but not distinct, so 60 does not belong to the sequence. %e A316793 72 = 2^3 * 3^2 has prime multiplicities (3,2), which are distinct and relatively prime, so 72 belongs to the sequence. %e A316793 144 = 2^4 * 3^2 has prime multiplicities (4,2), which are distinct but not relatively prime, so 144 does not belong to the sequence. %t A316793 Select[Range[100],And[UnsameQ@@Last/@FactorInteger[#],GCD@@Last/@FactorInteger[#]==1]&] %Y A316793 Cf. A000837, A005117, A007916, A130091, A301700, A303431, A316794, A316795, A316796. %K A316793 nonn %O A316793 1,2 %A A316793 _Gus Wiseman_, Jul 14 2018