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

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

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

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

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