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 A098880 #13 Sep 08 2022 08:45:15 %S A098880 0,11,247808,235782657,61408804864,7863818359375,642717115324416, %T A098880 38532504363714053,1841328767004311552,73994897046174912819, %U A098880 2593742460100000000000,81402749386839761113321,2331878554708454877954048,61870237399093306018139447,1537821699264393105232001024 %N A098880 a(n) = 11^n * n^11. %F A098880 G.f.: 11*x*(25937424601*x^10 +4800781498876*x^9 +32719096519197*x^8 +42939747452448*x^7 +17251662975954*x^6 +2532405864648*x^5 +142575727074*x^4 +2932842528*x^3 +18469077*x^2 +22396*x +1) / (11*x -1)^12. - _Colin Barker_, May 01 2013 %e A098880 11^2 * 2^11 = 247808 %o A098880 (Magma) [ 11^n*n^11: n in [0..20] ]; // _Vincenzo Librandi_, Feb 04 2011 %Y A098880 Cf. A098096, A097205, A097206. %K A098880 nonn,easy %O A098880 0,2 %A A098880 _Parthasarathy Nambi_, Oct 14 2004