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