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 A136006 #26 Sep 08 2022 08:45:32 %S A136006 0,0,56,702,4032,15500,46440,117306,261632,530712,999000,1770230, %T A136006 2984256,4824612,7526792,11387250,16773120,24132656,34006392,47039022, %U A136006 63992000,85756860,113369256,148023722,191089152,244125000,308898200,387400806,481868352,594798932 %N A136006 a(n) = n^6 - n^3. %H A136006 Vincenzo Librandi, <a href="/A136006/b136006.txt">Table of n, a(n) for n = 0..1000</a> %F A136006 G.f.: (2*x^6 + 58*x^5 + 294*x^4 + 310*x^3 + 56*x^2)/(-x^7 + 7*x^6 - 21*x^5 + 35*x^4 - 35*x^3 + 21*x^2 - 7*x + 1). - _Alexander R. Povolotsky_, Apr 01 2008 %F A136006 a(n) = A001014(n) - A000578(n). - _Michel Marcus_, Feb 15 2014 %F A136006 a(n) = 2 * A085744(n). - _Alois P. Heinz_, Mar 15 2021 %p A136006 A136006:=n->n^6 - n^3; seq(A136006(n), n=0..60); # _Wesley Ivan Hurt_, Feb 14 2014 %t A136006 a[n_]:=n^6-n^3; a[Range[0,60]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 10 2011 *) %t A136006 CoefficientList[Series[(2 x^6 + 58 x^5 + 294 x^4 + 310 x^3 + 56 x^2)/(-x^7 + 7 x^6 - 21 x^5 + 35 x^4 - 35 x^3 + 21 x^2 - 7 x + 1), {x, 0, 40}], x] (* _Vincenzo Librandi_, Feb 16 2014 *) %o A136006 (Magma) [n^6 - n^3: n in [0..40]]; // _Vincenzo Librandi_, Feb 16 2014 %o A136006 (PARI) a(n) = n^6 - n^3; \\ _Joerg Arndt_, Feb 16 2014 %Y A136006 Cf. A085744. %K A136006 easy,nonn %O A136006 0,3 %A A136006 _Rolf Pleisch_, Mar 16 2008 %E A136006 Extended by _Ray Chandler_, Dec 13 2008