OFFSET
1,4
COMMENTS
EXAMPLE
a(6)=1 because the only integer quadrilateral with longest edge length 6 is a trapezoid with sides a=6, b=5, c=4, d=5 and diagonals e=f=7.
CROSSREFS
KEYWORD
nonn
AUTHOR
Herbert Kociemba, May 22 2021
STATUS
approved