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

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

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

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

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