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

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

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

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

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