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%I #13 Jun 26 2018 04:59:02
%S 1,1,2,4,18,36,96,144,336,1120,960,960,4320,5760,9504,29568,161280,
%T 80640,884736,110592,155520,460800,729600,2188800,929280,1300992,
%U 2040192,1298304,3528000,14112000,71884800,71884800,85708800,243793920
%N a(n) is the number of divisors of n!*(n! + 1)/2.
%H Harry J. Smith, <a href="/A063101/b063101.txt">Table of n, a(n) for n = 0..60</a>
%o (PARI) a(n)={numdiv(n!*(n! + 1)/2)}
%Y Cf. A055555.
%K nonn
%O 0,3
%A _Jason Earls_, Aug 07 2001
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