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 A067427 #19 Oct 16 2024 09:01:30
%S A067427 1,10,280,7840,219520,6146560,172103680,4818903040,134929285120,
%T A067427 3778019983360,105784559534080,2961967666954240,82935094674718720,
%U A067427 2322182650892124160,65021114224979476480,1820591198299425341440
%N A067427 Seventh column of triangle A067425.
%H A067427 Vincenzo Librandi, <a href="/A067427/b067427.txt">Table of n, a(n) for n = 0..600</a>
%H A067427 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (28).
%F A067427 a(n) = A067425(n+6, 6).
%F A067427 a(n) = 10*(4*7)^(n-1), n >= 1, a(0)=1.
%F A067427 G.f.: (1-18*x)/(1-28*x).
%t A067427 LinearRecurrence[{28}, {1, 10}, 20] (* _Paolo Xausa_, Oct 16 2024 *)
%o A067427 (Magma) [Ceiling(10*(4*7)^(n-1)): n in [0..20]]; // _Vincenzo Librandi_, Oct 03 2011
%Y A067427 Cf. A067426 (sixth column), A067428 (eighth column), A009972 (powers of 28).
%K A067427 nonn,easy
%O A067427 0,2
%A A067427 _Wolfdieter Lang_, Jan 25 2002