%I
%S 1,1,2,2,1,3,3,4,2,1,3,5,4,6,4,2,1,3,5,7,5,8,6,4,2,1,3,5,7,9,6,10,8,6,
%T 4,2,1,3,5,7,9,11,7,12,10,8,6,4,2,1,3,5,7,9,11,13,8,14,12,10,8,6,4,2,
%U 1,3,5,7,9,11,13,15,9,16,14,12,10,8,6,4,2,1,3,5,7,9,11,13,15,17,10,18,16,14,12,10,8,6,4,2,1,3,5,7
%N a(n) = number of i in the range 1 <= i <= n such that b(i)=b(n), where b is the sequence A053615 taken with offset 1.
%C This assumes that the word "digit" in the definition in the Wimblik web page is changed to "number".
%H Quoss Wimblik, <a href="http://www.freaksearch.com/en/thread/5293952/a_new_numeral_system.">A new numeral system</a>
%p # b[n] = number of i <= n such that a[i]=a[n].
%p FREQ:=proc(a) local b,i,c,n,t1:
%p if whattype(a) <> list then RETURN([]); fi:
%p b:=[];
%p for n from 1 to nops(a) do
%p c:=0; t1:=a[n];
%p for i from 1 to n do if a[i]=t1 then c:=c+1; fi; od:
%p b:=[op(b),c];
%p od;
%p RETURN(b);
%p end:
%p # read A053615 as a list called s1
%p FREQ(s1);
%K nonn
%O 1,3
%A _N. J. A. Sloane_, Nov 22 2011
