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 A196414 #9 Sep 08 2022 08:45:59 %S A196414 1,0,-126,-2181,-16360,-78005,-279216,-818503,-2056832,-4420089, %T A196414 -6371200,20429629,443169792,6164272283,87072877696,1307503508625, %U A196414 20922521452544,355687017757327,6402373093507968,121645099514960261,2432902006896640000 %N A196414 n! - n^7. %H A196414 Vincenzo Librandi, <a href="/A196414/b196414.txt">Table of n, a(n) for n = 0..400</a> %o A196414 (Magma) [Factorial(n)-n^7: n in [0..20]] %o A196414 (PARI) a(n)=n!-n^7 \\ _Charles R Greathouse IV_, Nov 21 2011 %Y A196414 Cf. A005008, A005096, A007339, A144768, A196411, A196412, A196413 %K A196414 sign,less,easy %O A196414 0,3 %A A196414 _Vincenzo Librandi_, Oct 06 2011