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