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

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

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

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

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