OFFSET
1,1
COMMENTS
From the Ribenboim book: palindromic primes whose length is a palindromic prime whose length is a palindromic prime whose length is NOT a palindromic prime.
REFERENCES
Paulo Ribenboim, The New Book of Prime Number Records, Springer-Verlag New York Inc., 1996, pages 160-161.
LINKS
Alvin Hoover Belt, Table of n, a(n) for n = 1..100
EXAMPLE
a(42042) = 99999199999, a(42043) = 10^100 + 3030*10^48 + 1. [Charles R Greathouse IV, Feb 26 2012]
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Alvin Hoover Belt, Feb 25 2012
STATUS
approved