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

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

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

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

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