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A088991 Derangement numbers d(n,4) where d(n,k) = k(n-1)(d(n-1,k) + d(n-2,k)), with d(0,k) = 1 and d(1,k) = 0. 5

%I

%S 1,0,4,32,432,7424,157120,3949056,114972928,3805503488,141137150976,

%T 5797706178560,261309106499584,12821127008550912,680286677982625792,

%U 38814037079505895424,2369659425449311272960,154142301601844298776576,10642813349855965483368448

%N Derangement numbers d(n,4) where d(n,k) = k(n-1)(d(n-1,k) + d(n-2,k)), with d(0,k) = 1 and d(1,k) = 0.

%F Inverse binomial transform of A007696. E.g.f.: exp(-x)/(1-4*x)^(1/4). - _Vladeta Jovovic_, Dec 17 2003

%Y Cf. A000166, A053871, A033030, A088992.

%K nonn,easy,changed

%O 0,3

%A _N. J. A. Sloane_, Nov 02 2003

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Last modified May 20 16:26 EDT 2013. Contains 225464 sequences.