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A079806 Number of even numbers that can be formed by permuting the digits of n. 1
1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1, 1, 1, 2, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,21
COMMENTS
Derived sequences: (1) smallest k such that a(k) = n; (2) numbers m such that a(m) = m.
LINKS
EXAMPLE
a(246) = 6 (the numbers are 246,264,426,462,624,642). a(384) = 4 (the numbers are 384,348,438,834).
MATHEMATICA
Table[Count[FromDigits/@Permutations[IntegerDigits[n]], _?EvenQ], {n, 0, 120}] (* Harvey P. Dale, Jul 25 2020 *)
CROSSREFS
Sequence in context: A133162 A276172 A322028 * A342845 A045887 A056832
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Feb 06 2003
EXTENSIONS
More terms from Harvey P. Dale, Jul 25 2020
STATUS
approved

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Last modified April 22 01:34 EDT 2024. Contains 371887 sequences. (Running on oeis4.)