A168220 - OEIS

%I #12 Sep 08 2022 08:45:48

%S 0,1,520,29565,524416,4883125,30233736,141238825,536872960,1743395481,

%T 5000005000,12968719621,30958692480,68929260205,144627346696,

%U 288325220625,549755846656,1007996991985,1785233665800,3065533194061

%N a(n) = n^4*(n^6 + 1)/2.

%H Vincenzo Librandi, <a href="/A168220/b168220.txt">Table of n, a(n) for n = 0..10000</a>

%F G.f.: (x + 509*x^2 + 23900*x^3 + 227636*x^4 + 655154*x^5 + 655154*x^6 + 227636*x^7 + 23900*x^8 + 509*x^9 + x^10)/(1 - x)^11. - _G. C. Greubel_, Jul 16 2016

%t Table[n^4*(n^6 + 1)/2, {n,0,50}] (* _G. C. Greubel_, Jul 16 2016 *)

%o (Magma) [n^4*(n^6+1)/2: n in [0..20]]; // _Vincenzo Librandi_, Aug 28 2011

%K nonn,easy

%O 0,3

%A _N. J. A. Sloane_, Dec 11 2009