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 A100173 #18 Sep 08 2022 08:45:15
%S A100173 1,32,148,404,855,1556,2562,3928,5709,7960,10736,14092,18083,22764,
%T A100173 28190,34416,41497,49488,58444,68420,79471,91652,105018,119624,135525,
%U A100173 152776,171432,191548,213179,236380,261206,287712
%N A100173 Structured pentakis dodecahedral numbers (vertex structure 6).
%H A100173 Vincenzo Librandi, <a href="/A100173/b100173.txt">Table of n, a(n) for n = 1..5000</a>
%H A100173 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A100173 a(n) = (1/6)*(55*n^3 - 75*n^2 + 26*n).
%F A100173 G.f.: x*(1 + 28*x + 26*x^2)/(1-x)^4. - _Colin Barker_, May 29 2012
%t A100173 LinearRecurrence[{4,-6,4,-1},{1,32,148,404},40] (* _Harvey P. Dale_, Aug 04 2022 *)
%o A100173 (Magma) [(1/6)*(55*n^3-75*n^2+26*n): n in [1..40]]; // _Vincenzo Librandi_, Jul 26 2011
%Y A100173 Cf. A100165 = alternate vertex; A100145 for more on structured numbers.
%K A100173 easy,nonn
%O A100173 1,2
%A A100173 James A. Record (james.record(AT)gmail.com), Nov 07 2004