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

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

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

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

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