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

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

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

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

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