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

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

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

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

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