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