Pentomino In White (506)

Place identical pentominoes into the grid. The pentominoes may be rotated and reflected, but they cannot touch each other, not even diagonally. Then blacken the unused cells. The numbers outside the grid indicate the lenghts of blocks of blackened cells. If there are more numbers in one row /column, there must be at least one white cell (part of the pentomino) between each two blocks of blackened cells. The numbers outside the grid are given in increasing order

Reference: WPC 2016 (65)