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A002964 Smallest number requiring n chisel strokes for its representation in Roman numerals. 1
1, 2, 3, 7, 8, 17, 18, 27, 28, 37, 38, 87, 88, 188, 288, 388, 788, 888, 1288, 1388, 1888, 2288, 2388, 2888, 3288, 3388, 3888 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

C's count as 1 (curved) stroke and D's as 2 strokes. 5000 is V with a line over it, etc.

CROSSREFS

Cf. A002963.

Sequence in context: A076550 A062269 A060121 * A166966 A181658 A114281

Adjacent sequences:  A002961 A002962 A002963 * A002965 A002966 A002967

KEYWORD

base,nonn,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Erich Friedman (erich.friedman(AT)stetson.edu).

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Last modified February 16 10:32 EST 2012. Contains 205904 sequences.