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A036942 Smallest n-digit prime containing only digits 3 and 7, or 0 if no such prime exists. 1
3, 37, 337, 3373, 33377, 333337, 3333373, 33333373, 333337777, 3333733373, 33333333377, 333333733333, 3333333377377, 33333333373777, 333333333337337, 3333333333373777, 33333333333337337, 333333333333337333 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A196978 A197163 A326246 * A183960 A338717 A346952
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Jan 04 1999
STATUS
approved

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Last modified June 12 13:39 EDT 2024. Contains 373331 sequences. (Running on oeis4.)