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

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

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

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

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