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

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

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

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

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