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 A177068 #22 Jun 17 2025 11:55:15 %S A177068 1,11,1124,60049,1058576,9865625,61466176,292475249,1173741824, %T A177068 4486784401,20000000000,125937424601,1061917364224,10137858491849, %U A177068 100289254654976,1000576650390625,10001099511627776,100002015993900449 %N A177068 a(n) = 10^n + n^10. %H A177068 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (21,-165,715,-1980,3762,-5082,4950,-3465,1705,-561,111,-10). %F A177068 G.f.: ( 1 -10*x +1058*x^2 +37545*x^3 -22878*x^4 -3242028*x^5 -11792724*x^6 -12648678*x^7 -4503915*x^8 -477442*x^9 -10118*x^10 -11*x^11 ) / ( (10*x-1)*(x-1)^11 ). - _R. J. Mathar_, Jun 18 2010 %t A177068 f[n_]:=10^n+n^10;f[Range[0,40]] (* _Vladimir Joseph Stephan Orlovsky_, Feb 14 2011*) %o A177068 (Magma) [(10^n+n^10): n in [0..20]]; %o A177068 (PARI) a(n)=10^n+n^10 %K A177068 nonn,easy %O A177068 0,2 %A A177068 _Vincenzo Librandi_, May 31 2010 %E A177068 Offset corrected by _R. J. Mathar_, Jun 18 2010