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n! - n^4
6

%I #9 Sep 08 2022 08:45:59

%S 1,0,-14,-75,-232,-505,-576,2639,36224,356319,3618800,39902159,

%T 478980864,6226992239,87178252784,1307674317375,20922789822464,

%U 355687428012479,6402373705623024,121645100408701679,2432902008176480000

%N n! - n^4

%H Vincenzo Librandi, <a href="/A196411/b196411.txt">Table of n, a(n) for n = 0..400</a>

%o (Magma) [Factorial(n)-n^4: n in [0..20]]

%o (PARI) a(n)=n!-n^4 \\ _Charles R Greathouse IV_, Nov 21 2011

%Y Cf. A005008, A005096, A007339, A144768

%K sign,easy,less

%O 0,3

%A _Vincenzo Librandi_, Oct 06 2011