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
Jaroslav Krizek, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[607000]], Reverse[x = IntegerDigits[#]] == x && First[x] == 9 &] (* Jayanta Basu, Jun 24 2013 *)
CROSSREFS
KEYWORD
nonn,base,less
AUTHOR
Lekraj Beedassy, Feb 27 2007
EXTENSIONS
Extended by Ray Chandler, Feb 28 2007
STATUS
approved
