OFFSET
1,1
COMMENTS
Unary minus is not allowed, otherwise we would have a(n) = A091333(n).
FORMULA
EXAMPLE
a(5) = 6 because -5 = 1 - (1+1) * (1+1+1).
a(10) = 8 because -10 = 2 * (-5) = (1+1) * (1 - (1+1) * (1+1+1)).
CROSSREFS
KEYWORD
nonn
AUTHOR
Pontus von Brömssen, Jul 27 2023
STATUS
approved