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

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

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

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

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