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

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

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

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

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