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

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

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

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

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