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A088272
Palindromic primes that yield a prime when sandwiched between two 9's.
3
2, 101, 313, 373, 757, 787, 10301, 12721, 12821, 17471, 17971, 19991, 32423, 35153, 35753, 37573, 72727, 73237, 77977, 78787, 78887, 90709, 93139, 93239, 97879, 1035301, 1117111, 1120211, 1129211, 1134311, 1178711, 1183811, 1186811
OFFSET
1,1
EXAMPLE
373 is a member as 93739 is also a prime.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Sep 28 2003
EXTENSIONS
More terms from David Wasserman, Jul 28 2005
STATUS
approved