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

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

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

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

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