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

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

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

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

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