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

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

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

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

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