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A355907 A355906(n)/3. 2
0, 0, -1, 1, -2, 3, -5, 7, -11, 16, -25, 37, -56, 84, -127, 190, -286, 429, -644, 966 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,5
COMMENTS
This is also -(A355905(n)+A355906(n))/2.
LINKS
Don Knuth, Ambidextrous Numbers, Preprint, September 2022.
CROSSREFS
Sequence in context: A154888 A271485 A018057 * A130137 A218022 A091980
KEYWORD
sign,more
AUTHOR
N. J. A. Sloane, Sep 18 2022
STATUS
approved

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Last modified December 6 01:58 EST 2023. Contains 367594 sequences. (Running on oeis4.)