This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A067429 #13 Jun 29 2023 10:37:37 %S A067429 1,12,432,15552,559872,20155392,725594112,26121388032,940369969152, %T A067429 33853318889472,1218719480020992,43873901280755712, %U A067429 1579460446107205632,56860576059859402752,2046980738154938499072,73691306573577785966592 %N A067429 Ninth column of triangle A067425. %H A067429 Vincenzo Librandi, <a href="/A067429/b067429.txt">Table of n, a(n) for n = 0..600</a> %H A067429 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (36). %F A067429 a(n) = A067425(n+8, 8). %F A067429 a(n) = 12*(4*9)^(n-1), n >= 1, a(0)=1. %F A067429 G.f.: (1-24*x)/(1-36*x). %t A067429 Join[{1},NestList[36#&,12,20]] (* _Harvey P. Dale_, Feb 28 2017 *) %o A067429 (Magma) [Ceiling(12*(4*9)^(n-1)): n in [0..20]]; // _Vincenzo Librandi_, Oct 03 2011 %Y A067429 Cf. A067428 (eighth column), A009980 (powers of 36). %K A067429 nonn,easy %O A067429 0,2 %A A067429 _Wolfdieter Lang_, Jan 25 2002