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A004656
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Powers of 3 written in base 2.
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19
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1, 11, 1001, 11011, 1010001, 11110011, 1011011001, 100010001011, 1100110100001, 100110011100011, 1110011010101001, 101011001111111011, 10000001101111110001, 110000101001111010011, 10010001111101101111001
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listen;
history;
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internal format)
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OFFSET
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0,2
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REFERENCES
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S. Wolfram, A New Kind of Science, Wolfram Media, 2002, pp. 120 and 903.
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LINKS
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MATHEMATICA
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Table[ FromDigits[ IntegerDigits[3^n, 2]], {n, 0, 14}]
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PROG
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(PARI) a(n)=fromdigits(binary(3^n)) \\ M. F. Hasler, Jun 23 2018
(Magma) [Seqint(Intseq(3^n, 2)): n in [0..30]]; // G. C. Greubel, Sep 10 2018
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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