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A128375 Palindromic primes that start and end with 9. 5
919, 929, 90709, 91019, 93139, 93239, 93739, 94049, 94349, 94649, 94849, 94949, 95959, 96269, 96469, 96769, 97379, 97579, 97879, 98389, 98689, 9002009, 9015109, 9024209, 9037309, 9042409, 9043409, 9045409, 9046409, 9049409, 9067609 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Subsequence of A002385 (palindromic primes) and A002113 (palindromic numbers). Complement of A222729 (palindromic composite numbers starting with a digit 9) with respect to A043044 (palindromic numbers starting with a digit 9). - Jaroslav Krizek, Mar 09 2013
LINKS
MATHEMATICA
Select[Prime[Range[607000]], Reverse[x = IntegerDigits[#]] == x && First[x] == 9 &] (* Jayanta Basu, Jun 24 2013 *)
CROSSREFS
Sequence in context: A062335 A179673 A082518 * A068689 A088284 A020399
KEYWORD
nonn,base,less
AUTHOR
Lekraj Beedassy, Feb 27 2007
EXTENSIONS
Extended by Ray Chandler, Feb 28 2007
STATUS
approved

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Last modified June 18 04:26 EDT 2024. Contains 373468 sequences. (Running on oeis4.)