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

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

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

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

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