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%I
%S 0,1,1,2,4,8,20,44,124,300,920,2420,7940,22460,78040,235260,859580,
%T 2741660,10477880,35152820,139931620,491459820,2030707640,7436765660,
%U 31805257340,121046445260,534514790680,2108118579060,9591325648580
%N Numerators of continued fraction for alternating factorial.
%F a[0]=0; a[1]=1; a[n]=a[n-1]+[n/2]*a[n-2]
%F a(2n) = A002793(n); a(2n-1) = A002793(n) - n * A002793(n-1). [From _Max Alekseyev_, Jul 07 2010]
%Y Cf. A002793.
%K nonn
%O 0,4
%A Aleksandar Petojevic (apetoje(AT)ptt.yu), Sep 05 2000
%E More terms from _James A. Sellers_, Sep 07 2000
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