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

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

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

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

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