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

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

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

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

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