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A121023
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Multiples of 3 containing a 3 in their decimal representation.
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34
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3, 30, 33, 36, 39, 63, 93, 123, 132, 135, 138, 153, 183, 213, 231, 234, 237, 243, 273, 300, 303, 306, 309, 312, 315, 318, 321, 324, 327, 330, 333, 336, 339, 342, 345, 348, 351, 354, 357, 360, 363, 366, 369, 372, 375, 378, 381, 384, 387, 390, 393, 396, 399
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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The graph of this sequence is (roughly) self-similar: it has the same appearance when the scale is multiplied by 10. - M. F. Hasler, Mar 09 2014
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LINKS
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FORMULA
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MATHEMATICA
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Select[3*Range[500], MemberQ[IntegerDigits[#], 3] &] (* Paolo Xausa, Feb 25 2024 *)
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PROG
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(PARI) is(n)=!(n%3)&&setsearch(Set(digits(n)), 3) \\ M. F. Hasler, Mar 09 2014
(PARI) c=0; forstep(n=3, 3e4, 3, is(n)&write("/tmp/b121023.txt", c++" "n))
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CROSSREFS
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Cf. A121041, A011531, A121022, A121024, A121025, A121026, A121027, A121028, A121029, A121030, A121031, A121032, A121033, A121034, A121035, A121036, A121037, A121038, A121039, A121040.
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KEYWORD
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nonn,base,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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