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

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

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

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

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