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A037250 a(n) = n^2*(n^2 + 1)*(n-1). 3

%I

%S 0,0,20,180,816,2600,6660,14700,29120,53136,90900,147620,229680,

%T 344760,501956,711900,986880,1340960,1790100,2352276,3047600,3898440,

%U 4929540,6168140,7644096,9390000,11441300

%N a(n) = n^2*(n^2 + 1)*(n-1).

%C Conjecture: satisfies a linear recurrence having signature (6, -15, 20, -15, 6, -1). - _Harvey P. Dale_, Jul 27 2019

%D R. W. Carter, Simple Groups of Lie Type, Wiley 1972, Chap. 14.

%D J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985, p. xvi.

%H Vincenzo Librandi, <a href="/A037250/b037250.txt">Table of n, a(n) for n = 0..10000</a>

%t Table[n^2 (n^2+1)(n-1),{n,0,30}] (* _Harvey P. Dale_, Jul 27 2019 *)

%o (MAGMA) [n^2*(n^2+1)*(n-1): n in [0..30]]; // _Vincenzo Librandi_, Sep 14 2011

%Y Cf. A064487, A064583.

%K nonn,easy

%O 0,3

%A _N. J. A. Sloane_

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Last modified November 19 20:42 EST 2019. Contains 329323 sequences. (Running on oeis4.)