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