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!)
A100273 Primes of the form a^5 + b^3 with a,b>0. 3

%I #10 Jun 20 2023 19:12:40

%S 2,59,157,251,307,761,1051,1367,1753,3221,3407,3637,4339,5869,7883,

%T 7901,8243,9293,9973,10891,12689,16649,16871,17807,20707,20903,22639,

%U 24421,30631,35969,37567,50651,59113,59351,59561,60343,63463,67049,69697

%N Primes of the form a^5 + b^3 with a,b>0.

%H Vincenzo Librandi, <a href="/A100273/b100273.txt">Table of n, a(n) for n = 1..1000</a>

%t lst={}; Do[p=a^5+b^3; If[p<100000&&PrimeQ[p], AppendTo[lst, p]], {a, 64}, {b, 1024}]; Union[lst]

%t With[{nn=100},Select[#[[1]]^5+#[[2]]^3&/@Tuples[Range[nn],2],PrimeQ[#]&&#< 70000&]]//Union (* _Harvey P. Dale_, Jun 20 2023 *)

%Y Cf. A100293 (numbers of the form a^5 + b^3).

%K nonn

%O 1,1

%A _T. D. Noe_, Nov 18 2004

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 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)