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