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

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

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

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

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