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 A017356 #17 Sep 08 2022 08:44:42 %S A017356 2401,83521,531441,1874161,4879681,10556001,20151121,35153041, %T A017356 57289761,88529281,131079601,187388721,260144641,352275361,466948881, %U A017356 607573201,777796321,981506241,1222830961,1506138481 %N A017356 a(n) = (10*n+7)^4. %H A017356 Vincenzo Librandi, <a href="/A017356/b017356.txt">Table of n, a(n) for n = 0..10000</a> %H A017356 <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5, -10, 10, -5, 1). %t A017356 (10 Range[0, 20] + 7)^4 (* _Wesley Ivan Hurt_, Jan 15 2017 *) %o A017356 (Magma) [(10*n+7)^4: n in [0..40]]; // _Vincenzo Librandi_, Aug 30 2011 %Y A017356 Cf. A017353. %K A017356 nonn,easy %O A017356 0,1 %A A017356 _N. J. A. Sloane_