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

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

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

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

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