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

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

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

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

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