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 A326567 #5 Jul 13 2019 09:13:27
%S A326567 1,2,1,3,3,4,1,2,2,5,4,6,5,5,1,7,5,8,5,3,3,9,5,3,7,2,2,10,2,11,1,7,4,
%T A326567 7,3,12,9,4,3,13,7,14,7,7,5,15,6,4,7,9,8,16,7,4,7,5,11,17,7,18,6,8,1,
%U A326567 9,8,19,3,11,8,20,7,21,13,8,10,9,3,22,7,2,7
%N A326567 Numerator of the average of the multiset of prime indices of n.
%C A326567 A prime index of n is a number m such that prime(m) divides n. The multiset of prime indices of n is row n of A112798.
%e A326567 The prime indices of 12 are {1,1,2}, with average 4/3, so a(12) = 4.
%t A326567 Table[Numerator[Sum[q[[2]]*PrimePi[q[[1]]],{q,FactorInteger[n]}]/PrimeOmega[n]],{n,2,100}]
%Y A326567 Cf. A001222, A001414, A056239, A067629, A112798, A123528/A123529, A289508, A289509, A290103, A316413, A326568.
%K A326567 nonn,frac
%O A326567 2,2
%A A326567 _Gus Wiseman_, Jul 13 2019