OFFSET
1,7
COMMENTS
This sequence differs radically from the variant where we consider only positive terms (A330623).
LINKS
Rémy Sigrist, Table of n, a(n) for n = 1..10000
Rémy Sigrist, Scatterplot of the first 250000 terms
Rémy Sigrist, C program for A330622
FORMULA
a(n) = 0 iff n belongs to A003278.
PROG
(C) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Dec 21 2019
STATUS
approved