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

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

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

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

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