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

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

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

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

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