(0 21 2)(1 9 3)(4 16 15 8 6)(5 11 7)(10 14 12)(13 19 17)(18 22 20)
ALLOWS (11/8)-SEQUENCE
1: (2 4 16)

(0 21 2 15 8 6 4)(1 9 3)(5 11 7)(10 14 12)(13 19 17)(16)(18 22 20)
2: (1 9 3)

(0 21 2 15 8 6 4)(1)(3)(5 11 7)(9)(10 14 12)(13 19 17)(16)(18 22 20)
3: (2 6 21)

(0 21 4)(1)(2)(3)(5 11 7)(6 15 8)(9)(10 14 12)(13 19 17)(16)(18 22 20)
4: (5 11 7)

(0 21 4)(1)(2)(3)(5)(6 15 8)(7)(9)(10 14 12)(11)(13 19 17)(16)(18 22 20)