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 A016887 #19 Jul 08 2025 05:59:07
%S A016887 27,512,2197,5832,12167,21952,35937,54872,79507,110592,148877,195112,
%T A016887 250047,314432,389017,474552,571787,681472,804357,941192,1092727,
%U A016887 1259712,1442897,1643032,1860867,2097152,2352637,2628072,2924207,3241792,3581577,3944312
%N A016887 a(n) = (5*n+3)^3.
%H A016887 Vincenzo Librandi, <a href="/A016887/b016887.txt">Table of n, a(n) for n = 0..1000</a>
%H A016887 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A016887 From _Ilya Gutkovskiy_, May 26 2016: (Start)
%F A016887 O.g.f.: (27 + 404*x + 311*x^2 + 8*x^3)/(1 - x)^4.
%F A016887 E.g.f.: (27 + 485*x + 600*x^2 + 125*x^3)*exp(x). (End)
%F A016887 a(n) = A000578(A016885(n)). - _Michel Marcus_, May 26 2016
%t A016887 (5 Range[0, 30] + 3)^3 (* or *) LinearRecurrence[{4, -6, 4, -1}, {27, 512, 2197, 5832}, 30] (* _Harvey P. Dale_, Nov 26 2014 *)
%t A016887 Table[(5 n + 3)^3, {n, 0, 40}] (* _Vincenzo Librandi_, May 26 2016 *)
%o A016887 (Magma) [(5*n+3)^3: n in [0..40]]; // _Vincenzo Librandi_, May 26 2016
%Y A016887 Cf. A000578, A016885.
%K A016887 nonn,easy
%O A016887 0,1
%A A016887 _N. J. A. Sloane_