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A017283 a(n) = (10*n + 1)^3. 2

%I #20 Sep 08 2022 08:44:42

%S 1,1331,9261,29791,68921,132651,226981,357911,531441,753571,1030301,

%T 1367631,1771561,2248091,2803221,3442951,4173281,5000211,5929741,

%U 6967871,8120601,9393931,10793861,12326391,13997521,15813251,17779581,19902511

%N a(n) = (10*n + 1)^3.

%H Vincenzo Librandi, <a href="/A017283/b017283.txt">Table of n, a(n) for n = 0..10000</a>

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).

%F G.f.: (1 + 1327*x + 3943*x^2 + 729*x^3)/(1-x)^4. - _Bruno Berselli_, Jul 30 2011

%t (10*Range[0,30]+1)^3 (* or *) LinearRecurrence[{4,-6,4,-1},{1,1331,9261,29791},30] (* _Harvey P. Dale_, Nov 17 2019 *)

%o (Magma) [(10*n+1)^3: n in [0..35]]; // _Vincenzo Librandi_, Jul 30 2011

%o (PARI) for(n=0,27,print1((10*n+1)^3",")); \\ _Bruno Berselli_, Jul 30 2011

%K nonn,easy

%O 0,2

%A _N. J. A. Sloane_

%E More terms from _Bruno Berselli_, Jul 30 2011

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Last modified April 16 01:40 EDT 2024. Contains 371696 sequences. (Running on oeis4.)