OFFSET
1,4
COMMENTS
FORMULA
a(1) = 1, a(2) = 0; a(n) = (1/2)*(3 - a(n-1) - a(n-2)) + a((1/2)*(n + 1 - a(n-1))) + a((1/2)*(n + 2 - a(n-2))) for n >= 3.
PROG
CROSSREFS
KEYWORD
sign
AUTHOR
Nathan Fox and Alexis Ducote, Apr 13 2023
STATUS
approved