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

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

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

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

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