Given: The sum of the squares of a and its reverse b (i.e. the number read from right to left) is a perfect square.

Find the sides a,b,c of this peculiar right-angled triangle.

Source: This property was discovered by Victor Thébault in 1959.

(In reply to

computer solution by Charlie)

Victor
Thébault in 1959 published( American Mathematical Monthly of January **1959)** the triplet <Begin>

**88209 90288 126225 (7780827681 8151922944 ****15932750625
corresponding** squares) <end>
which triggered my post.

Charlie, your 2 additional solutions (maybe adding one more,
runtime allowing) definitely justify
the adding of 3 interesting sequences (a, b, c) to the OEIS folder.

** Strongly recommend you do
it.**