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 A085148 #19 May 31 2024 19:55:58 %S A085148 0,1,2,4,6,9,11,13,15,17,23,26,31,32,35,36,49,52,89,92,106,120,141, %T A085148 149,173,201,280,289,353,455,483,499,543,811,866,1010,1126,1557,2358, %U A085148 2411,2435,2485,2491,2772,2851,2937,2996,3642,3777,4123,4642,5566,6416,9202,9382 %N A085148 Numbers k such that k!!!!! + 1 is prime. %C A085148 The search for multifactorial primes started by Ray Ballinger is now continued by a team of volunteers on the website of Ken Davis (see link). %H A085148 Robert Price, <a href="/A085148/b085148.txt">Table of n, a(n) for n = 1..64</a> %H A085148 Ken Davis, <a href="http://mfprimes.free-dc.org">Status of Search for Multifactorial Primes</a>. %H A085148 Ken Davis, <a href="http://mfprimes.free-dc.org/mfdata/f05p.html">Results for n!5+1</a>. %Y A085148 Cf. A085157 (quintuple factorials), A085149. %K A085148 hard,nonn %O A085148 1,3 %A A085148 _Hugo Pfoertner_, Jun 23 2003 %E A085148 More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008 %E A085148 a(56)-a(64), with a(62)-(64) from the Ken Davis link, added to b-file by _Robert Price_, Sep 23 2012