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

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

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

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

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