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A039657
Number of digits in all (2n+1)-digit palindromic primes.
0
4, 45, 465, 4676, 46548, 462462, 4598113, 45549645, 459768842, 4542783435, 45319909593, 454084412972
OFFSET
0,1
REFERENCES
For 17-digit palindromic primes, work of Martin Eibl, Carlos Rivera and Warut Roonguthai on De Geest's website
FORMULA
a(n) = (2n+1)*A040025(n). - Michel Marcus, Jul 24 2015
EXAMPLE
There are 5172 9-digit palindromic primes, 5172*9 = 46548 digits.
CROSSREFS
Cf. A040025.
Sequence in context: A055602 A346629 A073565 * A114473 A275125 A264123
KEYWORD
nonn,base,more
AUTHOR
EXTENSIONS
a(9)-a(11) from A040025 by Michel Marcus, Jul 24 2015
STATUS
approved