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

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

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

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

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