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

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

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

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

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