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A355908
A335905(n) + A335906(n).
2
0, 2, -2, 4, -6, 10, -14, 22, -32, 50, -74, 112, -168, 254, -380, 572, -858, 1288, -1932, 2900
OFFSET
0,2
COMMENTS
This is also -2*A355907(n).
LINKS
Don Knuth, Ambidextrous Numbers, Preprint, September 2022.
CROSSREFS
KEYWORD
sign,more
AUTHOR
N. J. A. Sloane, Sep 19 2022
STATUS
approved