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

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

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

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

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