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

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

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

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

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