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