A071480 Sprague-Grundy values for octal games .173 and .1731.

1, 1, 2, 2, 3, 1, 0, 4, 3, 2, 0, 1, 1, 2, 2, 3, 5, 1, 4, 3, 2, 2, 1, 1, 0, 2, 3, 7, 4, 1, 3, 2, 2, 1, 0, 4, 6, 2, 7, 4, 0, 1, 2, 2, 3, 1, 0, 4, 6, 2, 0, 1, 1, 2, 2, 7, 5, 1, 4, 7, 2, 2, 1, 1, 0, 2, 3, 7, 4, 1, 3, 2, 2, 1, 0, 4, 6, 2, 7, 4, 0, 1, 2, 2, 3, 1, 0

Offset

1,3

Comments

Sequence is eventually periodic with period 40. The last exception is at n=20. Octal games .412, .413, .432, and .433 have values a(n-1). - Eric M. Schmidt, Feb 03 2017

References

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

Links

Table of n, a(n) for n=1..87.

Crossrefs

Sequence in context: A322987 A290563 A071474 * A371124 A267483 A071473

Adjacent sequences: A071477 A071478 A071479 * A071481 A071482 A071483

Keyword

nonn

Author

N. J. A. Sloane and Sue Pope, May 29 2002

Extensions

Edited and extended by Eric M. Schmidt, Feb 03 2017

Status

approved