This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A255388 #21 Nov 13 2024 05:38:25
%S A255388 313,73477,102850464108757,2202194587566133922938215539676032221
%N A255388 Primes of the form 157^k - 156^k.
%C A255388 a(5) has 1452 digits. - _Vincenzo Librandi_, Feb 22 2015
%C A255388 The values of k are 2, 3, 7, 17, 661, ... - _Jinyuan Wang_, May 30 2020
%H A255388 Michael P. May, <a href="https://arxiv.org/abs/1510.01028">On the Existence and Frequency Distribution of the Shell Primes</a>, arXiv preprint arXiv:1510.01028 [math.CO], 2015.
%t A255388 Select[Table[157^n - 156^n, {n, 1000}], PrimeQ] (* _Vincenzo Librandi_, Feb 22 2015 *)
%o A255388 (Magma) [a: n in [0..600] | IsPrime(a) where a is 157^n-156^n]; // _Vincenzo Librandi_, Feb 22 2015
%Y A255388 Cf. A254298.
%K A255388 nonn
%O A255388 1,1
%A A255388 _Michael P. May_, Feb 21 2015