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 A197908 Ceiling((n+1/n)^9). 2

%I #15 Sep 08 2022 08:45:59

%S 512,3815,50806,452377,2779906,12895978,48400259,154315776,432655359,

%T 1093685273,2539243268,5491371251,11182788770,21629362254,40008716649,

%U 71173490664,122332454248,203937787268,330822261551,523635874527,810637651663,1229904866746

%N Ceiling((n+1/n)^9).

%H Vincenzo Librandi, <a href="/A197908/b197908.txt">Table of n, a(n) for n = 1..10000</a>

%H <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (10,-45,120,-210,252,-210,120,-45,10,-1).

%F For n > 126, a(n) = n^9 + 9n^7 + 36n^5 + 84n^3 + 126n + 2. - _Charles R Greathouse IV_, Dec 27 2011

%o (Magma) [Ceiling((n+1/n)^9): n in [1..40]]

%o (PARI) a(n)=ceil((n+1/n)^9) \\ _Charles R Greathouse IV_, Dec 27 2011

%Y Cf. A014058.

%K nonn,easy

%O 1,1

%A _Vincenzo Librandi_, Oct 19 2011

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Last modified April 20 14:48 EDT 2024. Contains 371844 sequences. (Running on oeis4.)