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 A074704 #20 May 01 2014 02:37:00 %S A074704 0,0,2,0,1,2,4,6,0,1,3,5,7,10,13,0,2,4,6,9,12,15,18,21,0,2,5,8,11,14, %T A074704 17,21,24,28,32,0,3,6,9,12,16,20,23,27,31,35,40,44,0,3,7,10,14,18,22, %U A074704 27,31,35,40,44,49,54,59,0,4,8,12,16,21,25,30,34,39,44,49,54,59,64,70 %N A074704 a(n) = floor(n^(3/2)) - n*floor(n^(1/2)). %C A074704 a(n) is the coefficient of 1/n in the base n representation of sqrt(n); namely, the digit after the 'decimal' point. - _Jason Kimberley_, Feb 2012 %H A074704 Reinhard Zumkeller, <a href="/A074704/b074704.txt">Table of n, a(n) for n = 1..10000</a> %H A074704 Jason Kimberley, <a href="/wiki/User:Jason_Kimberley/sqrt_base">Index of expansions of sqrt(d) in base b</a> %F A074704 a(n) = A000093(n) - n * A000196(n). %Y A074704 Cf. A000196 [the digit before the 'decimal' point in the base n representation of sqrt(n)], A000093. %K A074704 nonn,look %O A074704 1,3 %A A074704 _Reinhard Zumkeller_, Sep 03 2002