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 A017342 #19 Sep 08 2022 08:44:42
%S A017342 36,256,676,1296,2116,3136,4356,5776,7396,9216,11236,13456,15876,
%T A017342 18496,21316,24336,27556,30976,34596,38416,42436,46656,51076,55696,
%U A017342 60516,65536,70756,76176,81796,87616,93636,99856,106276,112896,119716,126736
%N A017342 a(n) = (10*n + 6)^2.
%H A017342 Vincenzo Librandi, <a href="/A017342/b017342.txt">Table of n, a(n) for n = 0..10000</a>
%H A017342 <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3, -3, 1).
%F A017342 a(n) = A000290(A017341(n)). - _Wesley Ivan Hurt_, Jan 29 2014
%p A017342 A017342:=n->(10*n + 6)^2; seq(A017342(n), n=0..35); # _Wesley Ivan Hurt_, Jan 29 2014
%t A017342 Table[(10 n + 6)^2, {n, 0, 35}] (* _Wesley Ivan Hurt_, Jan 29 2014 *)
%t A017342 LinearRecurrence[{3,-3,1},{36,256,676},40] (* _Harvey P. Dale_, Dec 04 2014 *)
%o A017342 (Magma) [(10*n+6)^2: n in [0..35]]; // _Vincenzo Librandi_, Aug 03 2011
%o A017342 (PARI) a(n)=(10*n+6)^2 \\ _Charles R Greathouse IV_, Jun 17 2017
%Y A017342 Cf. A000290, A017341.
%K A017342 nonn,easy
%O A017342 0,1
%A A017342 _N. J. A. Sloane_