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