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

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

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

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

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