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