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

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

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

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

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