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A061493
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Roman numerals written using 1 for I, 2 for V, 3 for X, 4 for L, 5 for C, 6 for D, 7 for M.
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0
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1, 11, 111, 12, 2, 21, 211, 2111, 13, 3, 31, 311, 3111, 312, 32, 321, 3211, 32111, 313, 33, 331, 3311, 33111, 3312, 332, 3321, 33211, 332111, 3313, 333, 3331, 33311, 333111, 33312, 3332, 33321, 333211, 3332111, 33313, 34, 341, 3411, 34111, 3412
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Gerard Schildberger, The first 3999 numbers in Roman numerals
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EXAMPLE
| a(66)= 4321, LXVI is 50+10+5+1= 66, a(44)=3412, XLIV is -10+50-1+5= 44
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CROSSREFS
| Cf. A006968, A002963, A003587, A036787, A057226.
Sequence in context: A185535 A055016 A004287 * A093788 A204847 A098759
Adjacent sequences: A061490 A061491 A061492 * A061494 A061495 A061496
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KEYWORD
| easy,nonn,base
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AUTHOR
| Frank.Ellermann(AT)t-online.de, Jun 12 2001
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