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

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

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

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

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