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

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

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

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

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