(0 6 4)(1 17 2)(3 21 19 11 7)(5 16 14 10 8)(9 13 12)(15 20 18)
ALLOWS (11/8)-SEQUENCE
1: (0 6 9)
(0 13 12 9 4)(1 17 2)(3 21 19 11 7)(5 16 14 10 8)(6)(15 20 18)
2: (3 21 7)
(0 13 12 9 4)(1 17 2)(3)(5 16 14 10 8)(6)(7 19 11)(15 20 18)(21)
3: (5 10 8)
(0 13 12 9 4)(1 17 2)(3)(5)(6)(7 19 11)(8)(10 16 14)(15 20 18)(21)
4: (4 12 9)
(0 13 12)(1 17 2)(3)(4)(5)(6)(7 19 11)(8)(9)(10 16 14)(15 20 18)(21)