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 A274177 #14 Mar 25 2017 17:11:24 %S A274177 2,0,11,21,31 %N A274177 Smallest number whose shortest possible name when spelled in Japanese in 'On' reading has exactly n mora. %C A274177 Smallest number k such that A261126(k) = n. %H A274177 B. Bullock, <a href="http://www.sljfaq.org/cgi/numbers.cgi">Convert western numbers to kanji</a>. %H A274177 B. Bullock, <a href="http://www.sljfaq.org/afaq/1-100.html">What are the Japanese numbers from 1 to 100?</a>. %e A274177 2 (ni) has 1 mora. %e A274177 0 (ze-ro, re-i) has 2 mora. %e A274177 11 (ju-i-chi) has 3 mora. %e A274177 21 (ni-ju-i-chi) has 4 mora. %e A274177 31 (sa-n-ju-i-chi) has 5 mora. %Y A274177 Cf. A080777, A261126. %K A274177 nonn,word,more %O A274177 1,1 %A A274177 _Felix Fröhlich_, Jun 12 2016 %E A274177 There were errors in the mora-count for numbers greater than 99, as explained in the comments in A261126. - _N. J. A. Sloane_, Jul 01 2016