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