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A284293
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Numbers using only digits 1 and 6.
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7
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1, 6, 11, 16, 61, 66, 111, 116, 161, 166, 611, 616, 661, 666, 1111, 1116, 1161, 1166, 1611, 1616, 1661, 1666, 6111, 6116, 6161, 6166, 6611, 6616, 6661, 6666, 11111, 11116, 11161, 11166, 11611, 11616, 11661, 11666, 16111, 16116, 16161, 16166, 16611, 16616
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OFFSET
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1,2
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COMMENTS
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Product of digits of n is a power of 6; subsequence of A276038.
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LINKS
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MATHEMATICA
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Join @@ (FromDigits /@ Tuples[{1, 6}, #] & /@ Range[5]) (* Giovanni Resta, Mar 25 2017 *)
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PROG
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(Magma) [n: n in [1..20000] | Set(IntegerToSequence(n, 10)) subset {1, 6}]
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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