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

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

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

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

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