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

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

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

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

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