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A195526 Numbers written with two Roman numerals. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The second group of numbers in A003587.

LINKS

Table of n, a(n) for n=1..31.

EXAMPLE

2=II. 4=IV. 6=VI. 9=IX. 11=XI. 15=XV.

CROSSREFS

Sequence in context: A038107 A303331 A233776 * A153196 A247185 A237685

Adjacent sequences:  A195523 A195524 A195525 * A195527 A195528 A195529

KEYWORD

nonn,base,fini,full,easy,less

AUTHOR

Kausthub Gudipati, Sep 20 2011

STATUS

approved

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Last modified December 10 23:18 EST 2019. Contains 329910 sequences. (Running on oeis4.)