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