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