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