OFFSET
1,1
COMMENTS
a(9) > 10^24.
EXAMPLE
a(3) = 74747, since 74747, 75557 and 76367 are three consecutive palindromic primes with digit sum 29 and this is the first occurrence of three consecutive palindromic primes with equal digit sum.
CROSSREFS
KEYWORD
base,more,nonn
AUTHOR
Shyam Sunder Gupta, Oct 12 2013
EXTENSIONS
a(8) from Shyam Sunder Gupta, Nov 09 2013
STATUS
approved