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

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

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

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

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