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

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

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

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

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