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

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

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

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

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