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

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

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

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

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