Any two members out of (a1, a2, a3, a4, a5)
add up to a square number.
List the ten squares.
Rem: Existence of similar six-number set is not resolved yet.
(In reply to Example
"Eleven compliant squares also exist, namely the squares of 85958, 214342, 253258, 320458,....
Please explain the source of the above set and how theses numbers relate to solving " 2 out of 5"