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

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

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

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

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