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