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

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

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

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

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