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

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

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

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

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