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

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

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

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

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