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

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

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

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

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