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 A017287 a(n) = (10*n + 1)^7. 1

%I #16 Sep 08 2022 08:44:42

%S 1,19487171,1801088541,27512614111,194754273881,897410677851,

%T 3142742836021,9095120158391,22876792454961,51676101935731,

%U 107213535210701,207616015289871,379749833583241,662062621900811,1107984764452581,1789940649848551

%N a(n) = (10*n + 1)^7.

%H Vincenzo Librandi, <a href="/A017287/b017287.txt">Table of n, a(n) for n = 0..10000</a>

%H <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (8,-28,56,-70,56,-28,8,-1).

%F G.f.: (1 + 19487163*x + 1645191201*x^2 + 13649546515*x^3 + 23992558635*x^4 + 10232825529*x^5 + 855607987*x^6 + 4782969*x^7)/(1-x)^8. - _Bruno Berselli_, Jul 30 2011

%o (Magma) [(10*n+1)^7: n in [0..20]]; // _Vincenzo Librandi_, Jul 30 2011

%o (PARI) for(n=0,15,print1((10*n+1)^7",")); \\ _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 24 05:49 EDT 2024. Contains 371918 sequences. (Running on oeis4.)