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Binomial coefficient C(7n,n-2).
0

%I #12 Oct 25 2023 23:52:39

%S 1,21,378,6545,111930,1906884,32468436,553270671,9440350920,

%T 161322559475,2761025887620,47325339895743,812325612855848,

%U 13961746143269400,240260199935164200,4139207762053520646

%N Binomial coefficient C(7n,n-2).

%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 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[7n,n-2],{n,2,20}] (* _Harvey P. Dale_, Mar 16 2012 *)

%K nonn,easy

%O 2,2

%A _N. J. A. Sloane_