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

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

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

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

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