(0 21 18)(1 20 17 15 3)(2 19 13 7 4)(5 14 12)(6 10 8)(9 16 11)
ALLOWS (11/8)-SEQUENCE
1: (0 3 17)
(0 15 3 21 18)(1 20 17)(2 19 13 7 4)(5 14 12)(6 10 8)(9 16 11)
2: (2 19 13)
(0 15 3 21 18)(1 20 17)(2 7 4)(5 14 12)(6 10 8)(9 16 11)(13)(19)
3: (1 20 17)
(0 15 3 21 18)(1)(2 7 4)(5 14 12)(6 10 8)(9 16 11)(13)(17)(19)(20)
4: (0 21 18)
(0)(1)(2 7 4)(3 21 15)(5 14 12)(6 10 8)(9 16 11)(13)(17)(18)(19)(20)