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

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

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

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

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