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