(0 20 4)(1 8 6)(2 17 3)(5 14 13 11 9)(7 18 15 12 10)(16 21 19)
ALLOWS (11/8)-SEQUENCE
1: (1 8 11)
(0 20 4)(1 9 5 14 13 11 6)(2 17 3)(7 18 15 12 10)(8)(16 21 19)
2: (7 12 10)
(0 20 4)(1 9 5 14 13 11 6)(2 17 3)(7)(8)(10)(12 18 15)(16 21 19)
3: (5 14 9)
(0 20 4)(1 9 13 11 6)(2 17 3)(5)(7)(8)(10)(12 18 15)(14)(16 21 19)
4: (6 13 11)
(0 20 4)(1 9 13)(2 17 3)(5)(6)(7)(8)(10)(11)(12 18 15)(14)(16 21 19)