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A008831
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Log_2 (n) mod 13.
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2
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0, 1, 4, 2, 9, 5, 11, 3, 8, 10, 7, 6
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| This is also a (12,1)-sequence.
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REFERENCES
| H. Y. Song and S. W. Golomb, Generalized Welch-Costas sequences and their application to Vatican arrays, in Proc. 2nd International Conference on Finite Fields: Theory, Algorithms and Applications (Las Vegas 1993) Contemp. Math. vol. 168 344 1994.
I. M. Vinogradov, Elements of Number Theory, p. 220.
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MAPLE
| [ seq(mlog(n, 2, 13), n=1..12) ];
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CROSSREFS
| Sequence in context: A163253 A191663 A206561 * A095833 A163990 A082156
Adjacent sequences: A008828 A008829 A008830 * A008832 A008833 A008834
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KEYWORD
| nonn,base,fini,full
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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