%I A001503
%S A001503 12,90,12000000000000000000
%N A001503 Largest number requiring n syllables in English (U.K.) - not well-defined, 
               but the next term may be twelve millillion, too large to write down 
               here.
%D A001503 John H. Conway, R. K. Guy, The Book of Numbers, Copernicus Press, p. 
               15.
%Y A001503 Sequence in context: A135173 A114860 A001502 this_sequence A004311 A026074 
               A120990
%Y A001503 Adjacent sequences: A001500 A001501 A001502 this_sequence A001504 A001505 
               A001506
%K A001503 word,nonn,bref
%O A001503 1,1
%A A001503 N. J. A. Sloane (njas(AT)research.att.com).