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!)
A234929 Primes which become cubes when the digits are rotated once to the left. 1
251, 3491, 7219, 10133, 12979, 20051, 30491, 54287, 61757, 205487, 231443, 300491, 585737, 714887, 949303, 1000133, 1002979, 1035791, 1075357, 1224809, 2031443, 2068147, 3091267, 3386989, 5152087, 5993837, 6001757, 6009733, 6156089, 6752953, 7000219, 7144289 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
The prime 7219 is in the list because 2197 = 13*13*13.
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, 40000000, if(ispower(rotl(n), 3), s=concat(s, n))); s
(Sage)
[i for i in primes_first_n(1000000) if Integer((int(str(i)[1:]+str(i)[:1]))).nth_root(3, True)[1]] # Tom Edgar, Jan 03 2014
CROSSREFS
Cf. A234928.
Sequence in context: A201793 A183840 A340636 * A218639 A090834 A078968
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 April 17 13:58 EDT 2024. Contains 371764 sequences. (Running on oeis4.)