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A003587 Roman numerals with 1 letter, in numerical order; then those with 2 letters, etc. 5
1, 5, 10, 50, 100, 500, 1000, 2, 4, 6, 9, 11, 15, 20, 40, 51, 55, 60, 90, 101, 105, 110, 150, 200, 400, 501, 505, 510, 550, 600, 900, 1001, 1005, 1010, 1050, 1100, 1500, 2000, 3, 7, 12 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Cf. A003588.

Sequence in context: A035406 A103932 A034190 * A205884 A032088 A081076

Adjacent sequences:  A003584 A003585 A003586 * A003588 A003589 A003590

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), J. H. Conway and John Jackson (ab158(AT)freenet.uchsc.edu)

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Last modified February 15 11:25 EST 2012. Contains 205777 sequences.