A083308 - OEIS

%I #12 Sep 08 2022 08:45:10

%S 1,0,17,8,625,6016,94265,1677696,34437377,800000000,20749939681,

%T 594406696960,18638468204273,634971832025088,23354342041015625,

%U 922337297722474496,38928960147119608705,1748729698150919962624

%N a(n) = (4*(n+1)^n + (n-9)^n)/5.

%H Vincenzo Librandi, <a href="/A083308/b083308.txt">Table of n, a(n) for n = 0..300</a>

%o (Magma) [(4*(n+1)^n+(n-9)^n)/5: n in [0..25]]; // _Vincenzo Librandi_, Jun 29 2011

%o (PARI) a(n)= (4*(n+1)^n+(n-9)^n)/5 \\ _Charles R Greathouse IV_, Jun 29 2011

%Y Cf. A083307.

%K easy,nonn

%O 0,3

%A _Paul Barry_, Apr 24 2003