A138491 Say what you see in previous term, from the right, reporting total number for each digit encountered. Initial term is 7.

7, 17, 1711, 3117, 172113, 13311217, 17411223, 1322311417, 1741142322, 3213243117, 1731331422, 2214313317, 1731331422, 2214313317, 1731331422, 2214313317, 1731331422, 2214313317, 1731331422, 2214313317, 1731331422

Offset: 0

Author

Paolo P. Lava and Giorgio Balzarotti, Mar 20 2008

Keywords

• easy
• nonn
• base

Comments

After a while sequence has period 2 -> {1731331422,2214313317}

Examples

			To get the term after 172113, we say: one 3's, three 1's, one 2's, one 7's, so 13311217
		

Crossrefs

Cf. A063850, A022482, A005150, A005151, A006751, A006715, A006711, A022506-A022513, A138484-A138490, A138492, A138493.