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

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

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

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

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