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

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

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

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

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