|
%I
%S 1,7,84,1008,12096,145152,1741824,20901888,250822656,3009871872,
%T 36118462464,433421549568,5201058594816,62412703137792,
%U 748952437653504,8987429251842048,107849151022104576,1294189812265254912
%N Sixth column of triangle A067410.
%C The fifth column is [1,6,60,600,6000,60000,...].
%F a(n)= A067410(n+5, 5). a(n)= 7*12^(n-1), n>=1, a(0)=1.
%F G.f.: (1-5*x)/(1-12*x).
%Y Cf. A067412 (fourth column), A067414 (seventh column), A001021 (powers of 12).
%K nonn,easy
%O 0,2
%A _Wolfdieter Lang_, Jan 25 2002
|
