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

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

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

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

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