(0 21 2)(1 6 3)(4 15 11 9 7)(5 10 8)(12 19 13)(14 18 16)(17 22 20)
ALLOWS (11/8)-SEQUENCE
1: (1 6 9)

(0 21 2)(1 7 4 15 11 9 3)(5 10 8)(6)(12 19 13)(14 18 16)(17 22 20)
2: (5 10 8)

(0 21 2)(1 7 4 15 11 9 3)(5)(6)(8)(10)(12 19 13)(14 18 16)(17 22 20)
3: (4 15 7)

(0 21 2)(1 7 11 9 3)(4)(5)(6)(8)(10)(12 19 13)(14 18 16)(15)(17 22 20)
4: (3 11 9)

(0 21 2)(1 7 11)(3)(4)(5)(6)(8)(9)(10)(12 19 13)(14 18 16)(15)(17 22 20)