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

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

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

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

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