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

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

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

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

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