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 A017313 #32 Sep 08 2022 08:44:42
%S A017313 19683,10604499373,1801152661463,46411484401953,502592611936843,
%T A017313 3299763591802133,15633814156853823,58871586708267913,
%U A017313 186940255267540403,520411082988487293,1304773183829244583,3004041937984268273
%N A017313 a(n) = (10*n + 3)^9.
%H A017313 Vincenzo Librandi, <a href="/A017313/b017313.txt">Table of n, a(n) for n = 0..10000</a>
%H A017313 <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1).
%F A017313 a(n) = 10*a(n-1) - 45*a(n-2) + 120*a(n-3) - 210*a(n-4) + 252*a(n-5) - 210*a(n-6) + 120*a(n-7) - 45*a(n-8) + 10*a(n-9) - a(n-10); a(0)=19683, a(1)=10604499373, a(2)=1801152661463, a(3)=46411484401953, a(4)=502592611936843, a(5)=3299763591802133, a(6)=15633814156853823, a(7)=58871586708267913, a(8)=186940255267540403, a(9)=520411082988487293. - _Harvey P. Dale_, Sep 14 2013
%t A017313 (10*Range[0,20]+3)^9 (* or *) LinearRecurrence[ {10,-45,120,-210,252,-210,120,-45,10,-1},{19683,10604499373,1801152661463,46411484401953,502592611936843,3299763591802133,15633814156853823,58871586708267913,186940255267540403,520411082988487293},30] (* _Harvey P. Dale_, Sep 14 2013 *)
%o A017313 (Magma) [(10*n+3)^9: n in [0..15]]; // _Vincenzo Librandi_, Jul 31 2011
%o A017313 (Python) for n in range(0, 15): print((10*n + 3)**9, end=", ") # _Stefano Spezia_, Oct 20 2018
%Y A017313 Cf. A001017 (n^9), A017305 (10n+3).
%K A017313 nonn,easy
%O A017313 0,1
%A A017313 _N. J. A. Sloane_