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