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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A178968 Numbers that are represented in Roman numerals by exactly four letters. 2
 8, 13, 17, 22, 24, 26, 29, 31, 35, 42, 44, 46, 49, 53, 57, 62, 64, 66, 69, 71, 75, 80, 92, 94, 96, 99, 103, 107, 112, 114, 116, 119, 121, 125, 130, 141, 145, 152, 154, 156, 159, 161, 165, 170, 191, 195, 202, 204, 206, 209, 211, 215, 220, 240, 251, 255, 260 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Nathaniel Johnston, Table of n, a(n) for n = 1..215 (complete up to 3999) MAPLE for n from 1 to 3999 do if(length(convert(n, roman)) = 4)then printf("%d, ", n): fi: od: # Nathaniel Johnston, May 18 2011 MATHEMATICA Select[Range[300], StringLength[RomanNumeral[#]]==4&] (* Harvey P. Dale, Aug 20 2021 *) CROSSREFS Cf. A142958. Sequence in context: A168339 A070112 A070113 * A006613 A204221 A348277 Adjacent sequences:  A178965 A178966 A178967 * A178969 A178970 A178971 KEYWORD base,easy,nonn AUTHOR Kyle Stern, Jan 01 2011 EXTENSIONS Extended by Nathaniel Johnston, May 18 2011 STATUS approved

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

Last modified January 18 11:29 EST 2022. Contains 350454 sequences. (Running on oeis4.)