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 A004572 #27 Sep 08 2022 08:44:33 %S A004572 2,3,1,0,3,2,4,4,1,3,0,0,3,3,1,4,3,3,1,4,1,1,2,4,0,4,0,4,0,4,4,0,1,4, %T A004572 2,4,1,3,2,4,4,0,0,1,0,3,3,4,0,3,0,4,4,3,3,2,2,0,1,4,1,0,2,3,2,0,3,1, %U A004572 2,0,0,0,3,0,0,1,2,3,1,2,3,1,2,1,3,4,1,3,0,2,2,3,2,2,3,4,3,3,0 %N A004572 Expansion of sqrt(7) in base 5. %H A004572 Matthew House, <a href="/A004572/b004572.txt">Table of n, a(n) for n = 1..10000</a> %H A004572 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/sqrt_base">Index of expansions of sqrt(d) in base b</a> %t A004572 RealDigits[N[Sqrt@ 7, 120], 5] // First (* _Michael De Vlieger_, Aug 06 2015 *) %o A004572 (Magma) d:= 7; m:=5; Prune(Reverse(IntegerToSequence(Isqrt(d*m^100), m))); // _G. C. Greubel_, Mar 25 2018 %Y A004572 Cf. A010465 (same in base 10). %K A004572 nonn,base,cons %O A004572 1,1 %A A004572 _N. J. A. Sloane_ %E A004572 Updated by _Alois P. Heinz_ at the suggestion of Kevin Ryde, Feb 19 2012