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

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

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

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

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