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