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