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

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

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

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

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