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

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

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

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

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