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

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

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

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

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