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 A240932 #32 Feb 09 2024 12:39:07
%S A240932 0,0,256,13122,196608,1562500,8398080,34588806,117440512,344373768,
%T A240932 900000000,2143588810,4729798656,9788768652,19185257728,35880468750,
%U A240932 64424509440,111612119056,187339329792,305704134738,486400000000,756457187220,1152393344256,1722841676182
%N A240932 a(n) = n^9 - n^8.
%C A240932 For n>1 number of 9-digit positive integers in base n.
%H A240932 Vincenzo Librandi, <a href="/A240932/b240932.txt">Table of n, a(n) for n = 0..1000</a>
%H A240932 <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 A240932 a(n) = n^8*(n-1) = n^9 - n^8.
%F A240932 a(n) = A001017(n) - A001016(n).
%F A240932 G.f.: 2*x^2*(x^7+374*x^6+9327*x^5+49780*x^4+78095*x^3+38454*x^2+5281*x+128) / (x-1)^10. - _Colin Barker_, Aug 08 2014
%F A240932 Sum_{n>=2} 1/a(n) = 8 - Sum_{k=2..8} zeta(k). - _Amiram Eldar_, Jul 05 2020
%t A240932 Table[n^9 - n^8, {n, 0, 40}] (* _Vincenzo Librandi_, Aug 15 2016 *)
%o A240932 (PARI) vector(100, n, (n-1)^9 - (n-1)^8) \\ _Derek Orr_, Aug 03 2014
%o A240932 (Magma) [n^9-n^8: n in [0..40]]; // _Vincenzo Librandi_, Aug 15 2016
%Y A240932 Cf. A001016, A001017.
%Y A240932 Cf. A002378, A045991, A085537, A085538, A085539, A240930, A240931, A240933.
%K A240932 nonn,easy
%O A240932 0,3
%A A240932 _Martin Renner_, Aug 03 2014