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A002904 Delete all letters except c,d,i,l,m,v,x from n then read as Roman numeral if possible, otherwise 0. +0
4
0, 0, 0, 0, 4, 9, 5, 1, 1, 0, 55, 55, 1, 0, 1, 9, 5, 1, 1, 0, 0, 0, 0, 0, 4, 9, 5, 1, 1, 1, 1, 1, 1, 1 (list; graph; listen)
OFFSET

1,5

CROSSREFS

See A092302 for another version.

Sequence in context: A068238 A087369 A021206 this_sequence A121305 A011513 A164818

Adjacent sequences: A002901 A002902 A002903 this_sequence A002905 A002906 A002907

KEYWORD

nonn,word

AUTHOR

J. H. Conway (conway(AT)math.princeton.edu)

EXTENSIONS

Ambiguous or ill-defined beyond the last term shown.

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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