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

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

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

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

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