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 A132897 #12 Jan 26 2020 21:04:14
%S A132897 1,9,171,4149,113931,3371589,104901291,3382995429,112077370251,
%T A132897 3791733009669,130449626216811,4549980276438309,160525597608496971,
%U A132897 5718506593711745349,205410965909348626731,7431671761342761234789
%N A132897 Expansion of 1/(1-9x*c(10x)), where c(x) is the g.f. of A000108.
%F A132897 a(n) = Sum_{k=0..n} A039599(n,k)*(-1)^k*10^(n-k). - _Philippe Deléham_, Dec 11 2007
%F A132897 G.f.: 20/(11 + 9*sqrt(1-40x)). - _Philippe Deléham_, Oct 27 2011
%K A132897 nonn
%O A132897 0,2
%A A132897 _Philippe Deléham_, Nov 18 2007
%E A132897 More terms from _Philippe Deléham_, Oct 27 2011