OFFSET
0,1
COMMENTS
After a while sequence has period 2 -> {21321423,23321421}
EXAMPLE
To get the term after 122113, we say: one 3's, three 1's, two 2's, so 133122
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Paolo P. Lava and Giorgio Balzarotti, Mar 20 2008
EXTENSIONS
Duplicate term 21321423 removed by Georg Fischer, Sep 18 2023
STATUS
approved