The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A052196 Largest natural number less than 10^66 requiring exactly n letters in English. 3
 10, 9, 60, 90, 70, 66, 96, 10000000000, 10000000000000, 10000000000000000000000000000000000, 10000000000000000000000000, 10000000000000000000000000000000000000, 10000000000000000000000000000000000000000000000000000000000000000, 9000000000000000000000000000000000000000000000000000000000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 COMMENTS This uses US nomenclature: no conjunctive 'and'; 10^10 = 'ten billion'. This is the 'largest' counterpart to A080777, which gives the smallest positive integer with exactly n letters. Because of the definition's size limitation, a(758) will be the largest term in this finite sequence; a(758) = 878878878878878878878878878878878878878878878878878878878878878878. LINKS Hans Havermann, Table of n, a(n) for n = 3..758 Hans Havermann, Growth illustration for this sequence Hans Havermann, Define, divide, and conquer Pegg, E. Jr. and Weisstein, E. W. Mathematica's Google Aptitude: problem #20 MathWorld Headline news, Oct 13, 2004. EXAMPLE The largest numbers (<10^66) using 10 to 15 letters: 10: 10*10^9 = ten billion 11: 10*10^12 = ten trillion 12: 10*10^33 = ten decillion 13: 10*10^24 = ten septillion 14: 10*10^36 = ten undecillion 15: 10*10^63 = ten vigintillion MATHEMATICA k=100; lst=StringLength/@StringReplace[IntegerName/@Range[k], {"-"-> "", " "-> ""}]; max[n_]:=Last[Position[lst, n]]; max/@Range[3, 9]//Flatten (* Ivan N. Ianakiev, Oct 07 2015 *) CROSSREFS Cf. A001166, A080777. Sequence in context: A237114 A217412 A241285 * A243035 A070252 A038311 Adjacent sequences: A052193 A052194 A052195 * A052197 A052198 A052199 KEYWORD nonn,word,fini,full AUTHOR Henry Bottomley, Jan 28 2000 EXTENSIONS a(11) from Brian Galebach, Feb 06 2004 Edited and extended by Hans Havermann, Nov 08 2013 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 1 12:28 EST 2023. Contains 359993 sequences. (Running on oeis4.)