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