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