cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A168067 a(n) = n*(n^7+1)/2.

This page as a plain text file.
%I A168067 #22 Sep 02 2025 09:26:55
%S A168067 0,1,129,3282,32770,195315,839811,2882404,8388612,21523365,50000005,
%T A168067 107179446,214990854,407865367,737894535,1281445320,2147483656,
%U A168067 3487878729,5509980297,8491781530,12800000010,18911429691,27437936779,39155492652,55037657100,76293945325
%N A168067 a(n) = n*(n^7+1)/2.
%H A168067 Kelvin Voskuijl, <a href="/A168067/b168067.txt">Table of n, a(n) for n = 0..10000</a> (terms 0..1000 from Vincenzo Librandi)
%F A168067 G.f.: x*(1 + 120*x + 2157*x^2 + 7792*x^3 + 7827*x^4 + 2136*x^5 + 127*x^6)/(1-x)^9. - _Vincenzo Librandi_, Dec 10 2014
%t A168067 Table[n (n^7 + 1)/2, {n, 0, 40}] (* or *) CoefficientList[Series[x (1 + 120 x + 2157 x^2 + 7792 x^3 + 7827 x^4 + 2136 x^5 + 127 x^6) / (1 - x)^9, {x, 0, 40}], x] (* _Vincenzo Librandi_, Dec 10 2014 *)
%o A168067 (Magma) [n*(n^7+1)/2: n in [0..40]]; // _Vincenzo Librandi_, Dec 10 2014
%Y A168067 Cf. A168635.
%K A168067 nonn,easy,changed
%O A168067 0,3
%A A168067 _N. J. A. Sloane_, Dec 11 2009
%E A168067 More terms from _Vincenzo Librandi_, Dec 10 2014