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A293140 E.g.f.: Product_{m>0} (1-x^m). 2

%I

%S 1,-1,-2,0,0,120,0,5040,0,0,0,0,-479001600,0,0,-1307674368000,0,0,0,0,

%T 0,0,1124000727777607680000,0,0,0,403291461126605635584000000,0,0,0,0,

%U 0,0,0,0,-10333147966386144929666651337523200000000,0,0,0,0

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

%F a(n) = n! * A010815(n).

%F a(n) = Sum_{k=0..A003056(n)} (-1)^k * A351884(n,k). - _Alois P. Heinz_, Feb 23 2022

%Y Column k=1 of A293139.

%Y Cf. A003056, A010815, A088311, A351884.

%K sign

%O 0,3

%A _Seiichi Manyama_, Oct 01 2017

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Last modified August 18 10:34 EDT 2022. Contains 356212 sequences. (Running on oeis4.)