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

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

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

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

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