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

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

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

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

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