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

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

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

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

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