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