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 A340928 #12 Jan 28 2021 17:01:15
%S A340928 0,0,1,0,1,0,2,0,1,0,1,0,2,0,1,0,1,0,3,0,1,0,2,0,1,0,1,0,2,0,1,0,1,0,
%T A340928 1,0,3,0,1,0,1,0,2,0,1,0,2,0,2,0,1,0,4,0,1,0,1,0,1,0,3,0,1,0,1,0,1,0,
%U A340928 1,0,3,0,2,0,1,0,1,0,2,0,1,0,1,0,1,0,1
%N A340928 Least image of A001222 applied to the prime indices of n.
%C A340928 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 A340928 The prime indices of 4277 are {4,6,15} with images {2,2,2}, so a(4277) = 2.
%e A340928 The prime indices of 8303 are {8,8,9} with images {3,3,2}, so a(8303) = 2.
%t A340928 Table[If[n==1,0,Min@@PrimeOmega/@PrimePi/@First/@FactorInteger[n]],{n,100}]
%Y A340928 Positions of 0's are A000079.
%Y A340928 Positions of first appearances are A033844.
%Y A340928 The version for maximum is A340691.
%Y A340928 A003963 multiplies together the prime indices.
%Y A340928 A026794 counts partitions by sum and minimum.
%Y A340928 A056239 adds up the prime indices.
%Y A340928 A061395 selects the greatest prime index.
%Y A340928 A112798 lists the prime indices of each positive integer.
%Y A340928 Cf. A001222, A004277, A039900, A062447, A302540, A303975, A324522, A340610.
%K A340928 nonn
%O A340928 1,7
%A A340928 _Gus Wiseman_, Jan 28 2021