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A060139 Ordered set S defined by these rules: 0 and 1 are in S and if x is a nonzero number in S, then 3x-1 and 9x are in S. +0
1
0, 1, 2, 5, 9, 14, 18, 26, 41, 45, 53, 77, 81, 122, 126, 134, 158, 162, 230, 234, 242, 365, 369, 377, 401, 405, 473, 477, 485, 689, 693, 701, 725, 729, 1094, 1098, 1106, 1130, 1134, 1202, 1206, 1214, 1418, 1422, 1430, 1454, 1458, 2066, 2070, 2078, 2102, 2106 (list; graph; listen)
OFFSET

0,3

COMMENT

The numbers 1 and 9x occupy same positions in S that 1 occupies in the infinite Fibonacci word (A003849).

REFERENCES

Preprint available from Clark Kimberling

CROSSREFS

Sequence in context: A070986 A074793 A161767 this_sequence A025281 A160663 A024201

Adjacent sequences: A060136 A060137 A060138 this_sequence A060140 A060141 A060142

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu), Mar 05 2001

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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