%I #25 Mar 03 2017 11:56:04
%S 0,1,2,4,5,6,7,9,10,11,17,24,29,39,40,57,58,59,91,155,175,245,359,372,
%T 597,864,977,1077,1327,2076,4798,4975,10830,13453,15472,15948,16116,
%U 16681,18037,21725,22326,24753,28565,32659,46487,50649,51393,80069,95493
%N Numbers n such that n!!! + 1 is prime (0 is included by convention).
%C n!!! = n(n-3)(n-6)(n-9)...
%C 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 Ray Ballinger, <a href="http://web.archive.org/web/20160604135248/http://www.prothsearch.net/multifac.html">Status of Search for Multifactorial Primes</a>
%H Ken Davis, <a href="http://mfprimes.free-dc.org">Status of Search for Multifactorial Primes.</a>
%H Ken Davis, <a href="http://mfprimes.free-dc.org/mfdata/f03p.html">Results for n!3+1.</a>
%H <a href="/index/Fa#factorial">Index entries for sequences related to factorial numbers</a>
%Y Cf. A007661 (triple factorials), A084438, A037082.
%K nonn
%O 1,3
%A _G. L. Honaker, Jr._
%E More terms from _Steven Harvey_
%E Corrected and extended by _Hugo Pfoertner_, Jun 25 2003
%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 03 2008
%E Edited by _N. J. A. Sloane_, Jan 14 2008