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