OFFSET
8,3
LINKS
Eckard Specht, Table of n, a(n) for n = 8..200
EXAMPLE
For n=9, the only solution is (1, 4, 6, 7), (2, 3, 5, 8). - Sean A. Irvine, May 30 2023
CROSSREFS
KEYWORD
nonn
AUTHOR
Eckard Specht, Aug 17 2001
EXTENSIONS
Revised by Sean A. Irvine, May 30 2023
STATUS
approved