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