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

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

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

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

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