ref: 61ab152b804d8a176da1c82008b177ca3ce5bbe2
dir: /examples/misc/recursion.orca/
......................................... .#.RECURSION.#........................... ......................................... .#.BY.1.#.......#.BY.3.#................. ......................................... ..03O............03O..................... .30XG...........30XV..................... ....1AG............3AV................... .....H..............Y.................... ......................................... .#.BY.2.#.......#.BY.4.#................. ......................................... ..03O............03O..................... .30XU...........30X4..................... ....2AU............4A4................... .....W..............8.................... .........................................