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

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

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

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

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