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

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

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

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

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