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%I #9 Jan 02 2023 12:30:49
%S 5,9,16,26,35,40,49,59,66,76,86,95,109,129,149,166,186,200,209,229,
%T 249,266,286,300,316,339,359,380,399,418,439,459,480,496,510,530,546,
%U 566,586,600,609,629,649,666,686,700,716,739,759,780,799,819,840,856,879,900,905,926,945,965,986,1000,1010,1030,1046,1066,1086,1110
%N a(n) is the least number larger than the total number of letters in the English names for all terms up to and including a(n).
%C See A233185-A233188 for French and German variants.
%H E. Angelini, <a href="http://list.seqfan.eu/oldermail/seqfan/2013-December/012058.html">Cumulative quantity of letters used in a list of English number-names</a>, SeqFan list, Dec 05 2013
%o (PARI) a=0;k=0;for(n=1,99,until( k++ > a + A005589(k),); print1(k,","); a+=A005589(k))
%K nonn,word
%O 1,1
%A _Eric Angelini_ and _M. F. Hasler_, Dec 05 2013
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