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 A033423 #19 Mar 14 2025 10:44:19 %S A033423 1000000000,500000000,333333333,250000000,200000000,166666666, %T A033423 142857142,125000000,111111111,100000000,90909090,83333333,76923076, %U A033423 71428571,66666666,62500000,58823529,55555555,52631578,50000000 %N A033423 a(n) = floor(10^9/n). %H A033423 Seiichi Manyama, <a href="/A033423/b033423.txt">Table of n, a(n) for n = 1..10000</a> %H A033423 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1). %t A033423 Floor[10^9/Range[50]] (* _Wesley Ivan Hurt_, Mar 18 2023 *) %o A033423 (Magma) [Floor(10^9/n): n in [1..40]]; // _Wesley Ivan Hurt_, Apr 04 2023 %o A033423 (PARI) a(n) = 10^9\n; \\ _Seiichi Manyama_, Aug 12 2023 %Y A033423 Cf. A033420, A033421, A033422, A033424, A033425, A033426, A057072. %K A033423 easy,nonn %O A033423 1,1 %A A033423 _Jeff Burch_