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A174297 First column of A174295. 6

%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)^(n-3/2)*hypergeom([3/2, n-1],[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

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Last modified June 13 03:46 EDT 2021. Contains 344980 sequences. (Running on oeis4.)