

A174831


a(n) is the concatenation of the frequency of 0's, 1's, 2's etc. in the entries a(0) up to a(n1).


0



0, 1, 11, 13, 1401, 26011, 3811101, 4121210101, 61622201010001, 1119522020100010001, 1922822120100110001001, 27281122120200110001002001, 37331622120200210001002001000011
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OFFSET

0,3


COMMENTS

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


LINKS

Table of n, a(n) for n=0..12.
Index to sequences related to 'say what you see'


EXAMPLE

a(2) = 11 because there is 1 zero and 1 one in the entries a(0) and a(1).
a(3) = 13 because there are 1 zero and 3 ones in the entries a(0) to a(2).
a(7) = 4121210101 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).


CROSSREFS

Cf. A006920, A177359
Sequence in context: A111070 A110115 A073765 * A343838 A096074 A288611
Adjacent sequences: A174828 A174829 A174830 * A174832 A174833 A174834


KEYWORD

easy,nonn,base


AUTHOR

Paolo P. Lava and Giorgio Balzarotti, Mar 30 2010


EXTENSIONS

Definition corrected by Paolo P. Lava, Apr 04 2010
Definition rephrased, examples added, keyword:base added  R. J. Mathar, Aug 10 2010


STATUS

approved



