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

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

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

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

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