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

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

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

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

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