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

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

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

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

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