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 A326839 #5 Jul 29 2019 13:54:49
%S A326839 0,1,1,2,1,3,1,3,2,4,1,2,1,5,5,4,1,5,1,5,3,6,1,5,2,7,3,3,1,2,1,5,7,8,
%T A326839 7,3,1,9,4,2,1,7,1,7,7,10,1,3,2,7,9,4,1,7,8,7,5,11,1,7,1,12,2,6,3,8,1,
%U A326839 9,11,2,1,7,1,13,8,5,9,3,1,7,4,14,1,2,10
%N A326839 Numerator of A056239(n)/A061395(n) where A056239 is sum of prime indices and A061395 is maximum prime index.
%C A326839 This is a dual form of the average of an integer partition specified by its Heinz number: A326567/A326568.
%e A326839 The sequence of fractions begins: 0, 1, 1, 2, 1, 3/2, 1, 3, 2, 4/3, 1, 2, 1, 5/4, 5/3, 4, 1, 5/2, 1, 5/3.
%t A326839 primeMS[n_]:=If[n==1,{},Flatten[Cases[FactorInteger[n],{p_,k_}:>Table[PrimePi[p],{k}]]]];
%t A326839 Numerator[Table[Total[primeMS[n]]/Max@@primeMS[n],{n,100}]]
%Y A326839 Denominators are A326840.
%Y A326839 Positions of 1's are A000040.
%Y A326839 Cf. A001222, A047993, A056239, A061395, A112798, A316413.
%Y A326839 Cf. A326567/A326568, A326836, A326845, A326848, A326850.
%K A326839 nonn,frac
%O A326839 1,4
%A A326839 _Gus Wiseman_, Jul 26 2019