OFFSET
1,1
EXAMPLE
First and second 5d palindromic primes are 10301=p(1263),10501=p(1285), hence a(1)=1285-1263=23. Two largest 5d palindromic primes are 98389=p(9448),98689=p(9474), hence a(92)=9474-9448=26. There are exactly 93 five-digit palindromic primes.
CROSSREFS
KEYWORD
fini,full,base,nonn
AUTHOR
Zak Seidov, Jan 20 2006
STATUS
approved