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A071073
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Minimal "multiples of 3" set in base 10.
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6
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0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 42, 45, 48, 51, 54, 57, 72, 75, 78, 81, 84, 87, 111, 114, 117, 141, 144, 147, 171, 174, 177, 222, 225, 228, 252, 255, 258, 282, 285, 288, 411, 414, 417, 441, 444, 447, 471, 474, 477, 522, 525, 528, 552, 555, 558, 582, 585, 588
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Any multiple of 3 contains in its digits at least one of the terms of this sequence. There are 76 terms in the sequence; Delahaye gives all 76 terms and proves that there are no further terms (his statement that there are 280 terms seems to be a typo). There is no smaller set.
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REFERENCES
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J.-P. Delahaye, "Pour la science", (French edition of Scientific American), Juin 2002, p. 102
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LINKS
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Nathaniel Johnston, Table of n, a(n) for n = 1..76 (full sequence)
J.-P. Delahaye, Nombres premiers inévitables et pyramidaux
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CROSSREFS
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Cf. A071062, A071071, A071072, A071070.
Sequence in context: A085126 A190083 A117124 * A127451 A022844 A195934
Adjacent sequences: A071070 A071071 A071072 * A071074 A071075 A071076
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KEYWORD
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fini,full,nonn,base
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AUTHOR
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Benoit Cloitre, May 26 2002
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STATUS
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approved
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