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

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

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

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

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