(0 8 6)(1 11 9 7 5)(2 20 17 15 13)(3 21 4)(10 14 12)(16 19 18)
ALLOWS (11/8)-SEQUENCE
1: (0 2 15)
(0 13 2 8 6)(1 11 9 7 5)(3 21 4)(10 14 12)(15 20 17)(16 19 18)
2: (2 8 13)
(0 13 6)(1 11 9 7 5)(2)(3 21 4)(8)(10 14 12)(15 20 17)(16 19 18)
3: (1 11 5)
(0 13 6)(1)(2)(3 21 4)(5 9 7)(8)(10 14 12)(11)(15 20 17)(16 19 18)
4: (10 14 12)
(0 13 6)(1)(2)(3 21 4)(5 9 7)(8)(10)(11)(12)(14)(15 20 17)(16 19 18)