login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A125920 Sprague-Grundy values for octal game .176. 0
1, 1, 0, 2, 2, 3, 4, 4, 1, 1, 6, 2, 2, 3, 4, 4, 1, 1, 6, 6, 3, 3, 2, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4, 4, 1, 1, 6, 6, 3, 3, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

The sequence is eventually periodic with period 8. The last exception is at n=23.

REFERENCES

E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4, p. 104.

LINKS

Table of n, a(n) for n=1..103.

Index entries for linear recurrences with constant coefficients, signature (1, -1, 1, -1, 1, -1, 1).

MATHEMATICA

Join[{1, 1, 0, 2, 2, 3, 4, 4, 1, 1, 6, 2, 2, 3, 4, 4, 1, 1, 6, 6, 3, 3, 2}, LinearRecurrence[{1, -1, 1, -1, 1, -1, 1}, {4, 1, 1, 6, 6, 3, 3}, 80]] (* Ray Chandler, Aug 25 2015 *)

CROSSREFS

Sequence in context: A228754 A171830 A071506 * A176360 A185068 A078664

Adjacent sequences:  A125917 A125918 A125919 * A125921 A125922 A125923

KEYWORD

nonn

AUTHOR

Richard Sabey, Jan 24 2007

EXTENSIONS

Extended by Ray Chandler, Aug 25 2015

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 22 09:56 EDT 2019. Contains 328315 sequences. (Running on oeis4.)