login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A180022 Primes that can be obtained from other primes by interchanging the first and last digits. The source prime and the resulting prime are written consecutively. 3

%I #2 Mar 30 2012 17:25:51

%S 11,11,13,31,17,71,31,13,37,73,71,17,73,37,79,97,97,79,101,101,107,

%T 701,113,311,131,131,149,941,151,151,157,751,167,761,179,971,181,181,

%U 191,191,199,991,311,113,313,313,337,733,347,743,353,353,359,953,373,373

%N Primes that can be obtained from other primes by interchanging the first and last digits. The source prime and the resulting prime are written consecutively.

%C This sequence is different from A007500 and A069706. [From _Parthasarathy Nambi_, Aug 07 2010]

%e 389 is a prime and the prime 983 is obtained by interchanging the first and last digits.

%Y Cf. A179826, A180006

%Y Cf. A007500,A069706. [From _Parthasarathy Nambi_, Aug 07 2010]

%K base,nonn

%O 1,1

%A _Parthasarathy Nambi_, Aug 06 2010

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)