A174831 - OEIS

%I #8 Aug 24 2012 10:50:03

%S 0,1,11,13,1401,26011,3811101,4121210101,61622201010001,

%T 1119522020100010001,1922822120100110001001,

%U 27281122120200110001002001,37331622120200210001002001000011

%N a(n) is the concatenation of the frequency of 0's, 1's, 2's etc. in the entries a(0) up to a(n-1).

%C Like A006920 but starting from a(0)=0.

%H <a href="/index/Sa#swys">Index to sequences related to 'say what you see'</a>

%e a(2) = 1|1 because there is 1 zero and 1 one in the entries a(0) and a(1).

%e a(3) = 1|3 because there are 1 zero and 3 ones in the entries a(0) to a(2).

%e a(7) = 4|12|1|2|1|0|1|0|1 because there are 4 zeros, 12 ones, 1 two, 2 threes, 1 four, 0 fives,..., 1 eight in the entries a(0) to a(6).

%Y Cf. A006920, A177359

%K easy,nonn,base

%O 0,3

%A _Paolo P. Lava_ and _Giorgio Balzarotti_, Mar 30 2010

%E Definition corrected by _Paolo P. Lava_, Apr 04 2010

%E Definition rephrased, examples added, keyword:base added - _R. J. Mathar_, Aug 10 2010