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

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

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

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

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