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