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A105776
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Self-describing integers with the rule: if the digit d, part of the integer i, is odd then there are d odd digits in this integer; if the digit d is even there are d even digits.
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1
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1, 22, 122, 212, 221, 333, 4444, 14444, 22333, 23233, 23323, 23332, 32233, 32323, 32332, 33223, 33232, 33322, 41444, 44144, 44414, 44441, 555555, 666666, 1666666, 2255555, 2525555, 2552555, 2555255, 2555525, 2555552, 3334444, 3343444, 3344344, 3344434, 3344443
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OFFSET
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1,2
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COMMENTS
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The subsequence of A108571 consisting of all terms that have at most one even and at most one odd digit (which of course may appear several times; otherwise said, no two different odd and no two different even digits are allowed). - M. F. Hasler, Sep 22 2014
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LINKS
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EXAMPLE
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Integer 122 has 1 odd digit (1) and 2 even digits (2 and 2).
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CROSSREFS
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KEYWORD
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base,easy,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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