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

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

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

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

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