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

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

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

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

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