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A166874 Numbers with vertical symmetry when expressed as Roman numerals. 2
1, 2, 3, 5, 10, 19, 20, 30, 1000, 2000, 3000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..11.

CROSSREFS

Sequence in context: A237250 A283314 A078715 * A046630 A177874 A293353

Adjacent sequences:  A166871 A166872 A166873 * A166875 A166876 A166877

KEYWORD

nonn

AUTHOR

Claudio Meller, Oct 22 2009

EXTENSIONS

Edited by N. J. A. Sloane, Oct 25 2009

STATUS

approved

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Last modified February 23 02:29 EST 2019. Contains 320411 sequences. (Running on oeis4.)