cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A071430 Sprague-Grundy values for octal game .16.

Original entry on oeis.org

1, 0, 0, 1, 2, 2, 1, 4, 0, 1, 4, 2, 1, 4, 0, 1, 4, 2, 1, 4, 2, 1, 0, 2, 1, 4, 2, 1, 4, 5, 1, 4, 2, 1, 4, 2, 1, 4, 2, 3, 4, 2, 3, 4, 2, 3, 4, 2, 3, 4, 2, 3, 4, 2, 1, 4, 2, 3, 3, 2, 5, 4, 2, 5, 4, 2, 3, 1, 2, 5, 4, 2, 3, 4, 2, 5, 4, 2, 3, 3, 2, 5, 4, 2, 5, 3, 2, 5, 3, 2, 1, 4, 2, 5, 3, 2, 5, 4, 2, 5, 3, 2
Offset: 1

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Author

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

Keywords

Comments

Sequence is eventually periodic with period 149459. The last exception is at n=105350.

References

  • E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982; see Chapter 4, p. 102
  • E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Second Edition, Vol. 1, A K Peters, 2001, pp. 102, 109.
  • A. Gangolli and T. Plambeck, A Note on Periodicity in Some Octal Games, International Journal of Game Theory, Vol. 18 (1989), pp. 311-320.

Extensions

Edited and extended by Christian G. Bower, Oct 22 2002