OFFSET
1,7
LINKS
KnotInfo, Table of Knots
Eric Weisstein's World of Mathematics, Arf Invariant
FORMULA
EXAMPLE
For n <= 6, 5_2 and 6_1 are the only prime knots with Arf Invariant 0. (The unknot is not considered prime nor composite, much like the integer 1.) - Emma Joe Anderson, Jan 15 2023
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Eric W. Weisstein, Jul 10 2007
EXTENSIONS
a(11)-a(12) added using data from the KnotInfo database (see Links above) by Emma Joe Anderson, Jan 15 2023
STATUS
approved