OFFSET
1,1
COMMENTS
a(n) = -1 <=> n mod 3 = 0.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 1..400 (first 36 terms from Jean-Marc Rebert)
CROSSREFS
KEYWORD
sign,base
AUTHOR
Jean-Marc Rebert, Sep 12 2023
STATUS
approved