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