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