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

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

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

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

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