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 A066578 #20 Dec 04 2024 15:39:44 %S A066578 1,1,1,1,1,1,1,1,1,10,5,4,3,2,2,2,2,2,1,10,7,5,4,4,3,3,3,2,2,10,7,6,5, %T A066578 4,4,4,3,3,3,10,8,7,6,5,5,4,4,4,3,10,8,7,6,6,5,5,4,4,4,10,8,7,7,6,5,5, %U A066578 5,4,4,10,8,8,7,6,6,5,5,5,4,10,9,8,7,7,6,6,5,5,5,10,9,8,7,7,6,6,6,5,5,100 %N A066578 a(n) = floor(n/(sum of digits of n)). %H A066578 Harry J. Smith, <a href="/A066578/b066578.txt">Table of n, a(n) for n = 1..1000</a> %e A066578 a(12) = floor(12/(1+2)) = 4; a(14) = floor(14/(1+4)) = floor(2.8) = 2. %e A066578 a(24) = floor(24/(2+4)) = 4. a(29) = floor(29/(2+9)) = 2. %o A066578 (PARI) a(n) = n\sumdigits(n); \\ _Michel Marcus_, Jan 04 2016 %Y A066578 Cf. A007953, A066577, A080462. %K A066578 nonn,base %O A066578 1,10 %A A066578 _Amarnath Murthy_, Dec 20 2001 %E A066578 More terms from _Reinhard Zumkeller_, Feb 26 2003