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

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

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

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

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