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 A004573 #18 Sep 08 2022 08:44:33 %S A004573 2,3,5,1,2,5,2,1,0,1,2,2,3,2,1,2,5,0,0,3,5,0,3,5,0,5,2,1,2,5,3,3,0,4, %T A004573 4,5,1,1,5,5,2,3,4,5,2,1,5,0,4,4,1,0,3,0,5,5,2,5,0,1,1,2,3,1,5,4,5,3, %U A004573 0,1,5,5,3,5,0,3,1,2,3,5,5,1,0,2,0,3,3,1,4,0,5,5,2,2,2,4,4,2,0 %N A004573 Expansion of sqrt(7) in base 6. %H A004573 G. C. Greubel, <a href="/A004573/b004573.txt">Table of n, a(n) for n = 1..10000</a> %H A004573 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/sqrt_base">Index of expansions of sqrt(d) in base b</a> %t A004573 RealDigits[Sqrt[7], 6, 100][[1]] (* _G. C. Greubel_, Mar 26 2018 *) %o A004573 (Magma) d:= 7; m:=6; Prune(Reverse(IntegerToSequence(Isqrt(d*m^100), m))); // _G. C. Greubel_, Mar 26 2018 %Y A004573 Cf. A010465. %K A004573 nonn,base,cons %O A004573 1,1 %A A004573 _N. J. A. Sloane_ %E A004573 Updated by _Alois P. Heinz_ at the suggestion of Kevin Ryde, Feb 19 2012