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