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

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

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

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

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