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