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