A112586 Lengths of the loop of the sequences "Sum of last n digits" beginning with (n-1) zeros followed by digit 7.

1, 3, 15, 50, 171, 69, 461, 78, 12203, 312, 318880, 2184, 57725, 5804, 6698, 5091

Offset: 1

Author

Alexandre Wajnberg, Dec 17 2005

Keywords

• base
• easy
• nonn

Examples

			a(4)=50 because the sum of last four *digits* of the sequence beginning with 0,0,0,7, (three zeros followed by a 7) enters in a loop whose length is 50 terms; so a(4)=50
a(5)=171 because "Sum of last five digits" beginning with 0,0,0,0,7 enters in a cycle of 171 terms.
Computed by Michael D Beeler.
		

Crossrefs

Cf. A112395.