A178968 - OEIS

A178968

Numbers that are represented in Roman numerals by exactly four letters.

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