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