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

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

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

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

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