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

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

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

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

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