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

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

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

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

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