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 A110008 #17 Aug 27 2016 15:34:01
%S A110008 1,1,1,1,2,16,8,4,3,81,27,9,4,256,64,16,5,625,125,25,6,1296,216,36,7,
%T A110008 2401,343,49,8,4096,512,64,9,6561,729,81,10,10000,1000,100,11,14641,
%U A110008 1331,121,12,20736,1728,144,13,28561,2197,169,14,38416,2744,196,15
%N A110008 n followed by n^4 followed by n^3 followed by n^2.
%H A110008 <a href="/index/Rec#order_20">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,5,0,0,0,-10,0,0,0,10,0,0,0,-5,0,0,0,1).
%F A110008 G.f.: -x*(x^15-x^14+x^13-x^12-x^11-3*x^10+11*x^9+3*x^8-x^7+3*x^6+11*x^5-3*x^4+x^3+x^2+x+1) / ((x-1)^5*(x+1)^5*(x^2+1)^5). - _Colin Barker_, Dec 13 2014
%F A110008 a(n) = (2*n+3-(-1)^n+2*(-1)^((2*n+5-(-1)^n)/4))*(n^3+10*n^2+36*n+76+(n^3+2*n^2+20*n-60)*(-1)^n+(n^3+2*n^2-12*n+68)*(-1)^((2*n+5-(-1)^n)/4)-(n^3+10*n^2+4*n-52)*(-1)^((2*n+7+(-1)^n)/4))/2048. - _Luce ETIENNE_, Aug 27 2016
%t A110008 Flatten[Table[{n,n^Range[4,2,-1]},{n,15}]] (* _Harvey P. Dale_, Aug 11 2011 *)
%o A110008 (PARI) s=[]; for(n=1, 100, s=concat(s, [n,n^4,n^3,n^2])); s \\ _Colin Barker_, Dec 13 2014
%Y A110008 Cf. A000463, A109588, A109594.
%K A110008 nonn,easy
%O A110008 1,5
%A A110008 _Mohammad K. Azarian_, Sep 02 2005