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

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

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

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

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