ref: 3742f2aeb23c6415d1f2af3979e67988d4d760cf
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.................... .........................................