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

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

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

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

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