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

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

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

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

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