|
%I #14 Sep 08 2022 08:45:48
%S 0,1,129,3282,32770,195315,839811,2882404,8388612,21523365,50000005,
%T 107179446,214990854,407865367,737894535,1281445320,2147483656,
%U 3487878729,5509980297,8491781530,12800000010,18911429691,27437936779,39155492652,55037657100,76293945325
%N n*(n^7+1)/2.
%H Vincenzo Librandi, <a href="/A168067/b168067.txt">Table of n, a(n) for n = 0..1000</a>
%F 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 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 (Magma) [n*(n^7+1)/2: n in [0..40]]; // _Vincenzo Librandi_, Dec 10 2014
%Y Cf. A168635.
%K nonn,easy
%O 0,3
%A _N. J. A. Sloane_, Dec 11 2009
%E More terms from _Vincenzo Librandi_, Dec 10 2014
|
