OFFSET
1,21
COMMENTS
The records -1, 0, 1, 2, 3, 5, 8, 10, 11, 13, ... occur at n = 1, 4, 12, 26, 36, 80, 108, 4887, 18688, 22384, ...
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..65537
FORMULA
EXAMPLE
PROG
CROSSREFS
Cf. A328385 (the number found in the iteration).
KEYWORD
sign
AUTHOR
Antti Karttunen, Oct 15 2019
STATUS
approved