login
Triangle of coefficients in expansion of (5+7x)^n.
0

%I #5 Mar 30 2012 16:45:53

%S 1,5,7,25,70,49,125,525,735,343,625,3500,7350,6860,2401,3125,21875,

%T 61250,85750,60025,16807,15625,131250,459375,857500,900375,504210,

%U 117649,78125,765625,3215625,7503125,10504375,8823675,4117715

%N Triangle of coefficients in expansion of (5+7x)^n.

%F G.f.: 1 / [1 - x(5+7y)].

%K tabl,nonn,easy

%O 0,2

%A _N. J. A. Sloane_.