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

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

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

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

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