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