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

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

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

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

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