%I A053834
%S A053834 0,1,2,3,4,5,6,7,8,9,10,11,12,13,1,2,3,4,5,6,7,8,9,10,11,12,13,14,2,3,
%T A053834 4,5,6,7,8,9,10,11,12,13,14,15,3,4,5,6,7,8,9,10,11,12,13,14,15,16,4,5,
%U A053834 6,7,8,9,10,11,12,13,14,15,16,17,5,6,7,8,9,10,11,12,13,14,15,16,17,18
%N A053834 Sum of digits of n written in base 14.
%C A053834 a(n) = A138530(n,14) for n > 13. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Mar 26 2008
%H A053834 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               DigitSum.html">Digit Sum</a>
%F A053834 a(0)=0, a(14n+i)=a(n)+i 0<=i<=13; a(n)=n-13*(sum(k>0, floor(n/14^k)). 
               - Benoit Cloitre, Dec 19, 2002
%e A053834 a(20)=1+6=7 because 20 is written as 16 base 14
%o A053834 (PARI) a(n)=if(n<1,0,if(n%14,a(n-1)+1,a(n/14)))
%Y A053834 Cf. A000120, A007953.
%Y A053834 Sequence in context: A043272 A071523 A070696 this_sequence A043273 A080331 
               A167463
%Y A053834 Adjacent sequences: A053831 A053832 A053833 this_sequence A053835 A053836 
               A053837
%K A053834 base,nonn
%O A053834 0,3
%A A053834 Henry Bottomley (se16(AT)btinternet.com), Mar 28 2000