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

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

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

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

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