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

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

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

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

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