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

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

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

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

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