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

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

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

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

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