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 A004590 #22 Jul 06 2025 22:26:21 %S A004590 3,1,0,6,4,4,2,5,4,2,6,3,1,4,6,1,0,0,2,5,1,4,1,5,3,6,5,3,4,3,4,6,2,1, %T A004590 6,3,2,5,4,0,1,6,5,2,1,0,2,1,5,6,0,6,6,4,2,6,1,6,1,0,2,6,3,2,5,6,5,4, %U A004590 3,1,2,1,1,6,5,5,5,2,1,3,4,0,6,5,0,6,3,2,0,5,1,1,0,0,5,1,6,0,3 %N A004590 Expansion of sqrt(10) in base 7. %H A004590 G. C. Greubel, <a href="/A004590/b004590.txt">Table of n, a(n) for n = 1..10000</a> %H A004590 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/sqrt_base">Index of expansions of sqrt(d) in base b</a> %e A004590 3.106442542631461... %t A004590 RealDigits[Sqrt[10], 7, 105][[1]] (* _Alonso del Arte_, Jul 31 2014 *) %o A004590 (Magma) Prune(Reverse(IntegerToSequence(Isqrt(10*7^200),7))); // _Jason Kimberley_, Feb 19 2012 %Y A004590 Cf. A010467. %K A004590 nonn,base,cons,easy %O A004590 1,1 %A A004590 _N. J. A. Sloane_ %E A004590 a(72) onwards corrected by _Sean A. Irvine_, Jan 29 2016