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A090540
Beginning with 3, least prime obtained by sandwiching the previous term between strings of identical digits.
0
3, 131, 11311, 771131177, 33337711311773333, 77777733337711311773333777777, 3777777333377113117733337777773, 33377777733337711311773333777777333, 333333337777773333771131177333377777733333333, 9933333333777777333377113117733337777773333333399, 33333993333333377777733337711311773333777777333333339933333
OFFSET
1,1
COMMENTS
Questions: (1) Is this sequence infinite? (2) If so, are the digits equally distributed? - Stefan Steinerberger, Nov 08 2005
CROSSREFS
Sequence in context: A262639 A082563 A083999 * A262643 A048796 A213203
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Dec 09 2003
EXTENSIONS
a(6)-a(8) from Jim Nastos, Jan 30 2004
a(9)-a(11) from Stefan Steinerberger, Nov 08 2005
STATUS
approved