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

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

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

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

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