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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

For 17-digit palindromic primes, work of Martin Eibl, Carlos Rivera and Warut Roonguthai on De Geest's website

LINKS

Table of n, a(n) for n=0..11.

P. De Geest, World!Of Palindromic Primes, Page 1

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: A232729 A055602 A073565 * A114473 A275125 A264123

Adjacent sequences:  A039654 A039655 A039656 * A039658 A039659 A039660

KEYWORD

nonn,base,more

AUTHOR

Enoch Haga

EXTENSIONS

a(9)-a(11) from A040025 by Michel Marcus, Jul 24 2015

STATUS

approved

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Last modified September 23 05:43 EDT 2018. Contains 315273 sequences. (Running on oeis4.)