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

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

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

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

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