OFFSET
1,4
EXAMPLE
For n = 8, A347498(n) = 11, and the a(8) = 5 8-element subsets of {1,2,...,11} with distinct pairwise products are
{1,2,5,6,7,8,9,11};
{1,2,6,7,8,9,10,11};
{1,5,6,7,8,9,10,11};
{2,3,5,7,8,9,10,11}; and
{2,5,6,7,8,9,10,11}.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Peter Kagey, Oct 20 2021
EXTENSIONS
a(18)-a(20) from Michael S. Branicky, Oct 28 2021
STATUS
approved