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

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

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

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

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