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 A137282 #19 Jan 02 2024 08:59:03
%S A137282 1,2,4,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,
%T A137282 9,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,9,7,
%U A137282 3,7,5,7,1,7,9,7,3,7,5,7,1,7,9,7,3,7,5,7,1,7,9
%N A137282 Final digit of A136408(n).
%H A137282 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,1)
%F A137282 a(n) = a(n-8), n>=11.
%F A137282 -(7*x^3+3*x^4+7*x^5+5*x^6+7*x^7+5*x^9+5*x^10+1+2*x+4*x^2)/ ((x-1) *(1+x) *(x^2+1) *
%F A137282 (x^4+1)). - R. J. Mathar, Mar 11 2011
%t A137282 Mod[#,10]&/@LinearRecurrence[{3,-4,6,-4},{1,2,4,7},120] (* or *) PadRight[ {1,2,4},120,{1,7,9,7,3,7,5,7}] (* _Harvey P. Dale_, Aug 12 2016 *)
%K A137282 nonn,base,easy
%O A137282 0,2
%A A137282 _Paul Curtz_, Apr 05 2008