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

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

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

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

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