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

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

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

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

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