ref: 692f803e0c06a669e3e2b3d21bc8dd07e135b4e6
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.................... .........................................