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

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

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

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

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