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

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

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

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

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