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

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

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

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

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