A105776 - OEIS

A105776

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.

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

1,2

COMMENTS

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

LINKS

Table of n, a(n) for n=1..36.

EXAMPLE

Integer 122 has 1 odd digit (1) and 2 even digits (2 and 2).

CROSSREFS

Cf. A108571.

Sequence in context: A043498 A108571 A247700 * A044354 A140057 A044735

Adjacent sequences: A105773 A105774 A105775 * A105777 A105778 A105779

KEYWORD

base,easy,nonn

AUTHOR

Eric Angelini, May 04 2005

EXTENSIONS

More terms from M. F. Hasler, Sep 22 2014

STATUS

approved