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

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

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

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

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