login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A046484 Palindromic primes in base 10 and base 16. 0
2, 3, 5, 7, 11, 353, 787, 94049, 98689, 190080091, 3405684865043, 397922151229793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Intersection of A002385 and A029732. -  Michel Marcus, Jun 09 2013

LINKS

Table of n, a(n) for n=1..12.

P. De Geest, World!Of Palindromic Primes

PROG

(PARI) ispal(v) = {for(i=1, #v\2, if (v[i] != v[#v-i+1], return(0)); ); return(1); }; lista(nn) = {forprime(p=2, nn, if (ispal(digits(p, 10)) && ispal(digits(p, 16)), print1(p, ", ")); ); }  \\ Michel Marcus, Jun 09 2013

CROSSREFS

Cf. A002385.

Sequence in context: A046481 A082625 A030286 * A062888 A046483 A114835

Adjacent sequences:  A046481 A046482 A046483 * A046485 A046486 A046487

KEYWORD

nonn,hard,base

AUTHOR

Patrick De Geest and Warut Roonguthai Aug 15 1998.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified June 26 04:39 EDT 2017. Contains 288752 sequences.