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

1,2

Links

Table of n, a(n) for n=1..16.

Example

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.

Sequence in context: A089580 A034564 A012203 * A043005 A165746 A248122

Adjacent sequences: A112583 A112584 A112585 * A112587 A112588 A112589

Keyword

base,easy,nonn

Author

Alexandre Wajnberg, Dec 17 2005

Status

approved