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!)
A234926 Primes which become squares when the digits are rotated once to the left. 1
61, 601, 619, 6067, 6211, 6547, 6577, 6883, 62131, 63097, 63841, 64579, 66553, 69859, 600577, 600883, 601849, 602689, 604243, 604579, 605953, 609241, 609859, 611833, 616321, 619009, 624601, 627667, 629593, 637699, 644089, 649843, 652417, 654169, 655651 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Every term in the sequence begins with the digit 6.
LINKS
EXAMPLE
The prime 611833 is in the list because 118336 = 344*344.
PROG
(PARI) rotl(a) = my(b, c, d); b=#Str(a); c=floor(a/(10^(b-1))); d=a-c*(10^(b-1)); 10*d+c
s=[]; forprime(n=2, 700000, if(issquare(rotl(n)), s=concat(s, n))); s
CROSSREFS
Cf. A234925.
Sequence in context: A303412 A209548 A302898 * A355602 A069595 A235009
KEYWORD
nonn,base
AUTHOR
Colin Barker, Jan 01 2014
STATUS
approved

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 February 23 23:47 EST 2024. Contains 370288 sequences. (Running on oeis4.)