%I
%S 1,1,1,0,1,1,3,6,15,36,91,232,603,1585,4213,11298,30537,
%T 83097,227475,625992,1730787,4805595,13393689,37458330,105089229,
%U 295673994,834086421,2358641376,6684761125,18985057351,54022715451
%N First column of A174295.
%C First 6 terms as in Mobius function A008683. Signed version of A099323 with an additional leading 1.
%F a(n) = (3)^(n3/2)*hypergeom([3/2, n1],[2],4) for n > 2 (guessed formula) [From _Mark van Hoeij_, Jul 02 2010]
%Y Cf. A112468, A112467, A174294, A174295, A174296, A174297.
%K sign
%O 1,7
%A _Mats Granvik_, Mar 15 2010
