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

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

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

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

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