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A073788 Numbers in base -7. 9
0, 1, 2, 3, 4, 5, 6, 160, 161, 162, 163, 164, 165, 166, 150, 151, 152, 153, 154, 155, 156, 140, 141, 142, 143, 144, 145, 146, 130, 131, 132, 133, 134, 135, 136, 120, 121, 122, 123, 124, 125, 126, 110, 111, 112, 113, 114, 115, 116, 100, 101, 102, 103, 104, 105 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

REFERENCES

D. E. Knuth, The Art of Computer Programming. Addison-Wesley, Reading, MA, 1969, Vol. 2, p. 189.

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics

Prepared and presented by Matthew Szudzik of Wolfram Research, A Mathematica programming contest

MATHEMATICA

ToNegaBases[i_Integer, b_Integer] := FromDigits[ Rest[ Reverse[ Mod[ NestWhileList[(#1 - Mod[ #1, b])/-b &, i, #1 != 0 &], b]]]]; Table[ ToNegaBases[n, 7], {n, 0, 60}]

CROSSREFS

Cf. A007093, A039724, A073785, A007608, A073786, A073787, A073789, A073790 & A039723.

Sequence in context: A100793 A099145 A004868 * A004879 A062943 A004890

Adjacent sequences:  A073785 A073786 A073787 * A073789 A073790 A073791

KEYWORD

base,easy,nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 11 2002

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Last modified February 17 23:58 EST 2012. Contains 206085 sequences.