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E.g.f.: Product_{k>0} (1-x^k/k)^k.
3

%I #10 Nov 01 2017 10:06:45

%S 1,-1,-2,0,6,90,240,2100,1680,-28560,-682080,-7835520,-134497440,

%T -1059458400,-13047914880,-138646347840,-1130671301760,3558932657280,

%U 93341485036800,7903311136680960,149238605943947520,3997338754242113280,86934078099901992960

%N E.g.f.: Product_{k>0} (1-x^k/k)^k.

%H Seiichi Manyama, <a href="/A294470/b294470.txt">Table of n, a(n) for n = 0..451</a>

%o (PARI) N=66; x='x+O('x^N); Vec(serlaplace(prod(k=1, N, (1-x^k/k)^k)))

%Y Cf. A292359.

%Y Cf. A181541, A294469, A294471.

%K sign

%O 0,3

%A _Seiichi Manyama_, Oct 31 2017