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

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

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

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

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