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

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

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

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

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