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 A309919 #6 Aug 23 2019 06:58:25 %S A309919 5,20,65,160,371,756,1485,2701,4822,8144,13558,21756,34449,53044, %T A309919 80874,120573,178215,258897,373069,530068,748026,1043001,1445321, %U A309919 1983124,2705411,3659491,4924840,6578409,8746089,11553224,15194682,19870115,25881012,33537548 %N A309919 Total number of divisors d of m (counted with multiplicity), such that the prime signature of d is a partition of four and m runs through the set of least numbers whose prime signature is a partition of n. %H A309919 Alois P. Heinz, <a href="/A309919/b309919.txt">Table of n, a(n) for n = 4..4000</a> %Y A309919 Column k=4 of A079025. %K A309919 nonn %O A309919 4,1 %A A309919 _Alois P. Heinz_, Aug 23 2019