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