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 A016804 #22 Sep 08 2022 08:44:41 %S A016804 0,256,4096,20736,65536,160000,331776,614656,1048576,1679616,2560000, %T A016804 3748096,5308416,7311616,9834496,12960000,16777216,21381376,26873856, %U A016804 33362176,40960000,49787136,59969536 %N A016804 a(n) = (4*n)^4. %C A016804 a(n) = A155955(n,4) for n > 3. - _Reinhard Zumkeller_, Jan 31 2009 %H A016804 Vincenzo Librandi, <a href="/A016804/b016804.txt">Table of n, a(n) for n = 0..600</a> %H A016804 <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5,-10,10,-5,1). %o A016804 (Magma) [(4*n)^4: n in [0..40]]; // _Vincenzo Librandi_, Jul 29 2011 %o A016804 (PARI) a(n)=n^4<<8 \\ _Charles R Greathouse IV_, Jul 29 2011 %K A016804 nonn,easy %O A016804 0,2 %A A016804 _N. J. A. Sloane_