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

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

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

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

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