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

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

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

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

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