Write pythagorean(n) returning all [a, b, c] with a < b < c ≤ n and a² + b² = c², using one comprehension.
pythagorean(10) → [[3, 4, 5], [6, 8, 10]]
pythagorean(4) → []
Submit runs 3 tests, including hidden edge cases.
Run your code to see the output here.