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 A177892 #46 Jul 09 2023 11:20:44
%S A177892 1,2,2,3,2,3,6,3,5,5
%N A177892 The number of distinct prime factors in Lucas-Lehmer number A003010(n).
%C A177892 a(10)>2: results from www.factordb.com. - _R. J. Mathar_, Dec 15 2010
%C A177892 a(11)=4, factorization added to www.factordb.com. - _Sean A. Irvine_, Mar 25 2011
%H A177892 Dario Alejandro Alpern, <a href="https://www.alpertron.com.ar/ECM.HTM">Factorization using the Elliptic Curve Method (along with sigma_0, sigma_1 and phi functions)</a>
%F A177892 a(n) = A001221(A003010(n)).
%t A177892 Table[PrimeNu[Ceiling[(2 + Sqrt[3])^(2^n)]], {n,0,5}] (* _G. C. Greubel_, May 16 2017 *)
%o A177892 (PARI) a=4; until(a=a^2-2, print1(omega(a)", ")) \\ _M. F. Hasler_, Dec 14 2010
%Y A177892 Cf. A001221, A003010, A177876.
%K A177892 nonn,hard,more
%O A177892 0,2
%A A177892 _G. L. Honaker, Jr._, Dec 14 2010
%E A177892 a(9) from _Wang Runsen_, Oct 26 2020