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

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

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

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

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