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 A139066 #20 Oct 14 2024 01:37:09
%S A139066 631,45361,453601,59875201,10897286401,304112751022080001,
%T A139066 3231502092360622080001,77556050216654929920001,
%U A139066 1105220249217462744317952000001,332283946848556096005453226376826986289954816000000001
%N A139066 Primes of the form (8+k!)/8.
%C A139066 For numbers k for which (8+k!)/8 is prime see A151913.
%C A139066 The next term (a(11)) has 174 digits. - _Harvey P. Dale_, May 10 2016
%H A139066 Amiram Eldar, <a href="/A139066/b139066.txt">Table of n, a(n) for n = 1..11</a>
%F A139066 a(n) = A139155(A151913(n)). - _Amiram Eldar_, Oct 14 2024
%t A139066 a = {}; Do[If[PrimeQ[(n! + 8)/8], AppendTo[a, (n! + 8)/8]], {n, 1, 50}]; a
%t A139066 Select[(8+Range[50]!)/8,PrimeQ] (* _Harvey P. Dale_, May 10 2016 *)
%o A139066 (PARI) for(k=4,1e3,if(ispseudoprime(t=k!/8+1),print1(t", "))) \\ _Charles R Greathouse IV_, Jul 15 2011
%Y A139066 Cf. A020458, A082672, A089085, A089130, A117141, A007749, A139056, A139057, A139058, A139059, A139060, A139061, A139062, A139063, A139064, A139065, A139155, A151913.
%K A139066 nonn
%O A139066 1,1
%A A139066 _Artur Jasinski_, Apr 07 2008
%E A139066 Corrected link to sequence of indexes. - _Serge Batalov_, Feb 17 2015
%E A139066 a(10) from _Harvey P. Dale_, May 10 2016