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

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

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

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

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