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

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

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

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

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