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

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

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

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

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