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

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

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

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

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