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

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

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

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

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