|
%I #4 Oct 09 2013 02:24:25
%S 1,24,450,7700,126126,2018016,31855824,498841200,7773608700,
%T 120784604512,1873533922260,29034766346040,449790717967500,
%U 6967723880880000,107959904588606400,1673378521123399200,25949671331244477300,402629171550425820000,6250759024406391495000
%N C(1+2*n,1+n)*C(6+2*n,0+n)
%e if n=0 then C(1+2*0,1+0)*C(6+2*0,0+0)=C(1,1)*C(6,0)=1*1=1
%e if n=10 then C(1+2*n,1+n)*C(6+2*n,0+n)=C(21,11)*C(26,10)=352716*5311735=1873533922260
%t Table[Binomial[2n+1,n+1]Binomial[2n+6,n],{n,0,20}] (* _Harvey P. Dale_, Jun 08 2013 *)
%K easy,nonn
%O 0,2
%A _Zerinvary Lajos_, Feb 04 2006
%E More terms from _Harvey P. Dale_, Jun 08 2013
|
