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

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

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

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

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