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