A067429 - OEIS

%I #13 Jun 29 2023 10:37:37

%S 1,12,432,15552,559872,20155392,725594112,26121388032,940369969152,

%T 33853318889472,1218719480020992,43873901280755712,

%U 1579460446107205632,56860576059859402752,2046980738154938499072,73691306573577785966592

%N Ninth column of triangle A067425.

%H Vincenzo Librandi, <a href="/A067429/b067429.txt">Table of n, a(n) for n = 0..600</a>

%H <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (36).

%F a(n) = A067425(n+8, 8).

%F a(n) = 12*(4*9)^(n-1), n >= 1, a(0)=1.

%F G.f.: (1-24*x)/(1-36*x).

%t Join[{1},NestList[36#&,12,20]] (* _Harvey P. Dale_, Feb 28 2017 *)

%o (Magma) [Ceiling(12*(4*9)^(n-1)): n in [0..20]]; // _Vincenzo Librandi_, Oct 03 2011

%Y Cf. A067428 (eighth column), A009980 (powers of 36).

%K nonn,easy

%O 0,2

%A _Wolfdieter Lang_, Jan 25 2002