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

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

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

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

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