OFFSET
1,2
COMMENTS
Permutations of the 3 points are not counted separately.
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..100
CROSSREFS
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Oct 23 2018
EXTENSIONS
a(35)-a(40) from Giovanni Resta, Oct 26 2018
STATUS
approved