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 A037482 #15 Feb 13 2017 02:43:27 %S A037482 1,7,36,182,911,4557,22786,113932,569661,2848307,14241536,71207682, %T A037482 356038411,1780192057,8900960286,44504801432,222524007161, %U A037482 1112620035807,5563100179036,27815500895182,139077504475911,695387522379557 %N A037482 Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 1,2. %H A037482 <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (5,1,-5). %H A037482 <a href="/index/Ar#5-automatic">Index entries for 5-automatic sequences</a>. %F A037482 a(n) = 5a(n-1) + a(n-2) - 5a(n-3). %F A037482 a(n) = (-1)^n/12 -3/8 +7*5^n/24. G.f. x*(1+2*x) / ( (x-1)*(5*x-1)*(1+x) ). - _R. J. Mathar_, Nov 02 2011 %F A037482 A007091(a(n)) = A037487(n). - _R. J. Mathar_, Apr 27 2015 %o A037482 (PARI) a(n)=([0,1,0; 0,0,1; -5,1,5]^(n-1)*[1;7;36])[1,1] \\ _Charles R Greathouse IV_, Feb 13 2017 %K A037482 nonn,base,easy %O A037482 1,2 %A A037482 _Clark Kimberling_