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Binomial coefficient C(3n,n-5).
1

%I #25 Sep 02 2023 10:36:09

%S 1,18,210,2024,17550,142506,1107568,8347680,61523748,445891810,

%T 3190187286,22595200368,158753389900,1108176102180,7694644696200,

%U 53194089192720,366395202809685,2515943049305400,17231414395464984

%N Binomial coefficient C(3n,n-5).

%D M. Abramowitz and I. A. Stegun, eds., Handbook of Mathematical Functions, National Bureau of Standards Applied Math. Series 55, 1964 (and various reprintings), p. 828.

%H Seiichi Manyama, <a href="/A004323/b004323.txt">Table of n, a(n) for n = 5..1000</a>

%H Milan Janjic, <a href="http://www.pmfbl.org/janjic/">Two Enumerative Functions</a>

%H M. Abramowitz and I. A. Stegun, eds., <a href="http://www.convertit.com/Go/ConvertIt/Reference/AMS55.ASP">Handbook of Mathematical Functions</a>, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972 [alternative scanned copy].

%t Table[Binomial[3n, n - 5], {n, 5, 30}] (* _Stefan Steinerberger_, Apr 11 2006 *)

%o (Magma) [Binomial(3*n, n-5): n in [5..30]]; // _Vincenzo Librandi_, Aug 26 2015

%K nonn,easy

%O 5,2

%A _N. J. A. Sloane_