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

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

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

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

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