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 A128261 #8 Sep 17 2020 17:44:12
%S A128261 1,3,6,9,14,14,26,18,35,31,42,28,74,30,60,65,82,40,110,44,124,88,90,
%T A128261 54,195,79,108,114,170,66,242,68,196,136,140,149,326,78,156,164,322,
%U A128261 90,338,92,270,274,186,104,483,153,304,210,314,114,436,228,452,232
%N A128261 a(n) = tau(n) + (n-1)*tau(n-1).
%H A128261 Andrew Howroyd, <a href="/A128261/b128261.txt">Table of n, a(n) for n = 1..1000</a>
%e A128261 a(5) = 14 = (5 + 4 + 0 + 4 + 1), where (5, 4, 0, 4, 1) = row 5 of A128260.
%t A128261 Table[DivisorSigma[0,n]+(n-1)DivisorSigma[0,n-1],{n,60}] (* _Harvey P. Dale_, Sep 17 2020 *)
%o A128261 (PARI) a(n)={numdiv(n) + if(n > 1, (n-1)*numdiv(n-1))} \\ _Andrew Howroyd_, Aug 09 2018
%Y A128261 Row sums of A128260.
%Y A128261 Cf. A000005 (tau), A128229, A051731.
%K A128261 nonn
%O A128261 1,2
%A A128261 _Gary W. Adamson_, Feb 21 2007
%E A128261 Name changed and terms a(11) and beyond from _Andrew Howroyd_, Aug 09 2018