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

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

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

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

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