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

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

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

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

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