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