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

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

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

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

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