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