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

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

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

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

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