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 A004230 #13 Oct 25 2023 07:41:29 %S A004230 0,3011,4772,6021,6990,7782,8451,9031,9543,10000,10414,10792,11140, %T A004230 11462,11761,12042,12305,12553,12788,13011,13223,13425,13618,13803, %U A004230 13980,14150,14314,14472,14624 %N A004230 a(n) = 10000*log_10(n) rounded up. %Y A004230 Cf. A004228, A004239. %Y A004230 Cf. A004218, A004221, A004224, A004227. %K A004230 nonn %O A004230 1,2 %A A004230 _N. J. A. Sloane_