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

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

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

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

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