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

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

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

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

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