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

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

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

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

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