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