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 A021040 #19 Aug 02 2025 13:57:53
%S A021040 0,2,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
%T A021040 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
%U A021040 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
%N A021040 Decimal expansion of 1/36.
%H A021040 <a href="/index/Rec#order_01">Index entries for linear recurrences with constant coefficients</a>, signature (1).
%e A021040 0.0277777777777777777777777777777777777777777777777777777777777777777777777777...
%t A021040 Join[{0},RealDigits[1/36,10,120][[1]]] (* or *) PadRight[{0,2},120,{7}] (* _Harvey P. Dale_, Jul 14 2017 *)
%o A021040 (PARI) 1./36
%Y A021040 Cf. A010727.
%K A021040 nonn,cons,easy
%O A021040 0,2
%A A021040 _N. J. A. Sloane_